Update survey version cache (#3071)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

.github/scripts/check_language_properties.py

@@ -164,7 +164,7 @@ def update_missing_keys(reference_file, file_list, branch=""):
                 if current_entry["type"] == "entry":
                     if ref_entry_copy["type"] != "entry":
                         continue
-                    if ref_entry_copy["key"] == current_entry["key"]:
+                    if ref_entry_copy["key"].lower() == current_entry["key"].lower():
                         ref_entry_copy["value"] = current_entry["value"]
             updated_properties.append(ref_entry_copy)
         write_json_file(os.path.join(branch, file_path), updated_properties)
@@ -199,29 +199,30 @@ def check_for_differences(reference_file, file_list, branch, actor):
     base_dir = os.path.abspath(os.path.join(os.getcwd(), "src", "main", "resources"))
 
     for file_path in file_arr:
-        absolute_path = os.path.abspath(file_path)
+        file_normpath = os.path.normpath(file_path)
+        absolute_path = os.path.abspath(file_normpath)
         # Verify that file is within the expected directory
         if not absolute_path.startswith(base_dir):
-            raise ValueError(f"Unsafe file found: {file_path}")
+            raise ValueError(f"Unsafe file found: {file_normpath}")
         # Verify file size before processing
-        if os.path.getsize(os.path.join(branch, file_path)) > MAX_FILE_SIZE:
+        if os.path.getsize(os.path.join(branch, file_normpath)) > MAX_FILE_SIZE:
             raise ValueError(
-                f"The file {file_path} is too large and could pose a security risk."
+                f"The file {file_normpath} is too large and could pose a security risk."
             )
 
-        basename_current_file = os.path.basename(os.path.join(branch, file_path))
+        basename_current_file = os.path.basename(os.path.join(branch, file_normpath))
         if (
             basename_current_file == basename_reference_file
             or (
                 # only local windows command
-                not file_path.startswith(
+                not file_normpath.startswith(
                     os.path.join("", "src", "main", "resources", "messages_")
                 )
-                and not file_path.startswith(
+                and not file_normpath.startswith(
                     os.path.join(os.getcwd(), "src", "main", "resources", "messages_")
                 )
             )
-            or not file_path.endswith(".properties")
+            or not file_normpath.endswith(".properties")
             or not basename_current_file.startswith("messages_")
         ):
             continue
@@ -292,13 +293,13 @@ def check_for_differences(reference_file, file_list, branch, actor):
         else:
             report.append("2. **Test Status:** ✅ **_Passed_**")
 
-        if find_duplicate_keys(os.path.join(branch, file_path)):
+        if find_duplicate_keys(os.path.join(branch, file_normpath)):
             has_differences = True
             output = "\n".join(
                 [
                     f"      - `{key}`: first at line {first}, duplicate at `line {duplicate}`"
                     for key, first, duplicate in find_duplicate_keys(
-                        os.path.join(branch, file_path)
+                        os.path.join(branch, file_normpath)
                     )
                 ]
             )

.github/workflows/licenses-update.yml

@@ -69,7 +69,7 @@ jobs:
       - name: Create Pull Request
         id: cpr
         if: env.CHANGES_DETECTED == 'true'
-        uses: peter-evans/create-pull-request@67ccf781d68cd99b580ae25a5c18a1cc84ffff1f # v7.0.6
+        uses: peter-evans/create-pull-request@dd2324fc52d5d43c699a5636bcf19fceaa70c284 # v7.0.7
         with:
           token: ${{ steps.generate-token.outputs.token }}
           commit-message: "Update 3rd Party Licenses"

.github/workflows/pre_commit.yml

@@ -61,7 +61,7 @@ jobs:
           git diff --staged --quiet || echo "CHANGES_DETECTED=true" >> $GITHUB_ENV
       - name: Create Pull Request
         if: env.CHANGES_DETECTED == 'true'
-        uses: peter-evans/create-pull-request@67ccf781d68cd99b580ae25a5c18a1cc84ffff1f # v7.0.6
+        uses: peter-evans/create-pull-request@dd2324fc52d5d43c699a5636bcf19fceaa70c284 # v7.0.7
         with:
           token: ${{ steps.generate-token.outputs.token }}
           commit-message: ":file_folder: pre-commit"

.github/workflows/sync_files.yml

@@ -103,7 +103,7 @@ jobs:
           git diff --staged --quiet || git commit -m ":memo: Sync README.md" || echo "no changes"
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@67ccf781d68cd99b580ae25a5c18a1cc84ffff1f # v7.0.6
+        uses: peter-evans/create-pull-request@dd2324fc52d5d43c699a5636bcf19fceaa70c284 # v7.0.7
         with:
           token: ${{ steps.generate-token.outputs.token }}
           commit-message: Update files

build.gradle

@@ -25,7 +25,7 @@ ext {
 }
 
 group = "stirling.software"
-version = "0.42.0"
+version = "0.43.1"
 
 java {
     // 17 is lowest but we support and recommend 21
@@ -294,8 +294,8 @@ configurations.all {
 dependencies {
 
     //tmp for security bumps
-	implementation 'ch.qos.logback:logback-core:1.5.16'
+	implementation 'ch.qos.logback:logback-core:1.5.17'
-    implementation 'ch.qos.logback:logback-classic:1.5.16'
+    implementation 'ch.qos.logback:logback-classic:1.5.17'
 
 
     // Exclude vulnerable BouncyCastle version used in tableau
@@ -347,8 +347,8 @@ dependencies {
         // implementation 'org.springframework.security:spring-security-core:$springSecuritySamlVersion'
         implementation 'com.coveo:saml-client:5.0.0'
 
-
     }
+    implementation 'org.snakeyaml:snakeyaml-engine:2.9'
 
     testImplementation "org.springframework.boot:spring-boot-starter-test:$springBootVersion"
 

src/main/java/stirling/software/SPDF/EE/LicenseKeyChecker.java

@@ -51,7 +51,7 @@ public class LicenseKeyChecker {
 
     public void updateLicenseKey(String newKey) throws IOException {
         applicationProperties.getEnterpriseEdition().setKey(newKey);
-        GeneralUtils.saveKeyToConfig("EnterpriseEdition.key", newKey, false);
+        GeneralUtils.saveKeyToSettings("EnterpriseEdition.key", newKey);
         checkLicense();
     }
 

src/main/java/stirling/software/SPDF/SPDFApplication.java

@@ -83,18 +83,18 @@ public class SPDFApplication {
         Map<String, String> propertyFiles = new HashMap<>();
 
         // External config files
-        log.info("Settings file: {}", InstallationPathConfig.getSettingsPath());
+        Path settingsPath = Paths.get(InstallationPathConfig.getSettingsPath());
-        if (Files.exists(Paths.get(InstallationPathConfig.getSettingsPath()))) {
+        log.info("Settings file: {}", settingsPath.toString());
+        if (Files.exists(settingsPath)) {
             propertyFiles.put(
-                    "spring.config.additional-location",
+                    "spring.config.additional-location", "file:" + settingsPath.toString());
-                    "file:" + InstallationPathConfig.getSettingsPath());
         } else {
-            log.warn(
+            log.warn("External configuration file '{}' does not exist.", settingsPath.toString());
-                    "External configuration file '{}' does not exist.",
-                    InstallationPathConfig.getSettingsPath());
         }
 
-        if (Files.exists(Paths.get(InstallationPathConfig.getCustomSettingsPath()))) {
+        Path customSettingsPath = Paths.get(InstallationPathConfig.getCustomSettingsPath());
+        log.info("Custom settings file: {}", customSettingsPath.toString());
+        if (Files.exists(customSettingsPath)) {
             String existingLocation =
                     propertyFiles.getOrDefault("spring.config.additional-location", "");
             if (!existingLocation.isEmpty()) {
@@ -102,11 +102,11 @@ public class SPDFApplication {
             }
             propertyFiles.put(
                     "spring.config.additional-location",
-                    existingLocation + "file:" + InstallationPathConfig.getCustomSettingsPath());
+                    existingLocation + "file:" + customSettingsPath.toString());
         } else {
             log.warn(
                     "Custom configuration file '{}' does not exist.",
-                    InstallationPathConfig.getCustomSettingsPath());
+                    customSettingsPath.toString());
         }
         Properties finalProps = new Properties();
 
@@ -128,7 +128,7 @@ public class SPDFApplication {
         try {
             Files.createDirectories(Path.of(InstallationPathConfig.getTemplatesPath()));
             Files.createDirectories(Path.of(InstallationPathConfig.getStaticPath()));
-        } catch (Exception e) {
+        } catch (IOException e) {
             log.error("Error creating directories: {}", e.getMessage());
         }
 
@@ -157,7 +157,7 @@ public class SPDFApplication {
                     } else if (os.contains("nix") || os.contains("nux")) {
                         SystemCommand.runCommand(rt, "xdg-open " + url);
                     }
-                } catch (Exception e) {
+                } catch (IOException e) {
                     log.error("Error opening browser: {}", e.getMessage());
                 }
             }

src/main/java/stirling/software/SPDF/config/AppConfig.java

@@ -96,9 +96,9 @@ public class AppConfig {
 
     @Bean(name = "rateLimit")
     public boolean rateLimit() {
-        String appName = System.getProperty("rateLimit");
+        String rateLimit = System.getProperty("rateLimit");
-        if (appName == null) appName = System.getenv("rateLimit");
+        if (rateLimit == null) rateLimit = System.getenv("rateLimit");
-        return (appName != null) ? Boolean.valueOf(appName) : false;
+        return (rateLimit != null) ? Boolean.valueOf(rateLimit) : false;
     }
 
     @Bean(name = "RunningInDocker")
@@ -170,16 +170,14 @@ public class AppConfig {
     @Bean(name = "analyticsPrompt")
     @Scope("request")
     public boolean analyticsPrompt() {
-        return applicationProperties.getSystem().getEnableAnalytics() == null
+        return applicationProperties.getSystem().getEnableAnalytics() == null;
-                || "undefined".equals(applicationProperties.getSystem().getEnableAnalytics());
     }
 
     @Bean(name = "analyticsEnabled")
     @Scope("request")
     public boolean analyticsEnabled() {
         if (applicationProperties.getEnterpriseEdition().isEnabled()) return true;
-        return applicationProperties.getSystem().getEnableAnalytics() != null
+        return applicationProperties.getSystem().isAnalyticsEnabled();
-                && Boolean.parseBoolean(applicationProperties.getSystem().getEnableAnalytics());
     }
 
     @Bean(name = "StirlingPDFLabel")

src/main/java/stirling/software/SPDF/config/ConfigInitializer.java

@@ -9,7 +9,6 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
-import java.util.*;
 
 import lombok.extern.slf4j.Slf4j;
 
@@ -37,7 +36,6 @@ public class ConfigInitializer {
             log.info("Created settings file from template");
         } else {
             // 2) Merge existing file with the template
-            Path settingsPath = Paths.get(InstallationPathConfig.getSettingsPath());
             URL templateResource = getClass().getClassLoader().getResource("settings.yml.template");
             if (templateResource == null) {
                 throw new IOException("Resource not found: settings.yml.template");
@@ -49,160 +47,33 @@ public class ConfigInitializer {
                 Files.copy(in, tempTemplatePath, StandardCopyOption.REPLACE_EXISTING);
             }
 
-            // 2a) Read lines from both files
+            // Copy setting.yaml to a temp location so we can read lines
-            List<String> templateLines = Files.readAllLines(tempTemplatePath);
+            Path settingTempPath = Files.createTempFile("settings", ".yaml");
-            List<String> mainLines = Files.readAllLines(settingsPath);
+            try (InputStream in = Files.newInputStream(destPath)) {
+                Files.copy(in, settingTempPath, StandardCopyOption.REPLACE_EXISTING);
+            }
 
-            // 2b) Merge lines
+            YamlHelper settingsTemplateFile = new YamlHelper(tempTemplatePath);
-            List<String> mergedLines = mergeYamlLinesWithTemplate(templateLines, mainLines);
+            YamlHelper settingsFile = new YamlHelper(settingTempPath);
 
-            // 2c) Only write if there's an actual difference
+            boolean changesMade =
-            if (!mergedLines.equals(mainLines)) {
+                    settingsTemplateFile.updateValuesFromYaml(settingsFile, settingsTemplateFile);
-                Files.write(settingsPath, mergedLines);
+            if (changesMade) {
+                settingsTemplateFile.save(destPath);
                 log.info("Settings file updated based on template changes.");
             } else {
                 log.info("No changes detected; settings file left as-is.");
             }
 
             Files.deleteIfExists(tempTemplatePath);
+            Files.deleteIfExists(settingTempPath);
         }
 
         // 3) Ensure custom settings file exists
         Path customSettingsPath = Paths.get(InstallationPathConfig.getCustomSettingsPath());
-        if (!Files.exists(customSettingsPath)) {
+        if (Files.notExists(customSettingsPath)) {
             Files.createFile(customSettingsPath);
+            log.info("Created custom_settings file: {}", customSettingsPath.toString());
         }
     }
-
-    /**
-     * Merge logic that: - Reads the template lines block-by-block (where a "block" = a key and all
-     * the lines that belong to it), - If the main file has that key, we keep the main file's block
-     * (preserving whitespace + inline comments). - Otherwise, we insert the template's block. - We
-     * also remove keys from main that no longer exist in the template.
-     *
-     * @param templateLines lines from settings.yml.template
-     * @param mainLines lines from the existing settings.yml
-     * @return merged lines
-     */
-    private List<String> mergeYamlLinesWithTemplate(
-            List<String> templateLines, List<String> mainLines) {
-
-        // 1) Parse template lines into an ordered map: path -> Block
-        LinkedHashMap<String, Block> templateBlocks = parseYamlBlocks(templateLines);
-
-        // 2) Parse main lines into a map: path -> Block
-        LinkedHashMap<String, Block> mainBlocks = parseYamlBlocks(mainLines);
-
-        // 3) Build the final list by iterating template blocks in order
-        List<String> merged = new ArrayList<>();
-        for (Map.Entry<String, Block> entry : templateBlocks.entrySet()) {
-            String path = entry.getKey();
-            Block templateBlock = entry.getValue();
-
-            if (mainBlocks.containsKey(path)) {
-                // If main has the same block, prefer main's lines
-                merged.addAll(mainBlocks.get(path).lines);
-            } else {
-                // Otherwise, add the template block
-                merged.addAll(templateBlock.lines);
-            }
-        }
-
-        return merged;
-    }
-
-    /**
-     * Parse a list of lines into a map of "path -> Block" where "Block" is all lines that belong to
-     * that key (including subsequent indented lines). Very naive approach that may not work with
-     * advanced YAML.
-     */
-    private LinkedHashMap<String, Block> parseYamlBlocks(List<String> lines) {
-        LinkedHashMap<String, Block> blocks = new LinkedHashMap<>();
-
-        Block currentBlock = null;
-        String currentPath = null;
-
-        for (String line : lines) {
-            if (isLikelyKeyLine(line)) {
-                // Found a new "key: ..." line
-                if (currentBlock != null && currentPath != null) {
-                    blocks.put(currentPath, currentBlock);
-                }
-                currentBlock = new Block();
-                currentBlock.lines.add(line);
-                currentPath = computePathForLine(line);
-            } else {
-                // Continuation of current block (comments, blank lines, sub-lines)
-                if (currentBlock == null) {
-                    // If file starts with comments/blank lines, treat as "header block" with path
-                    // ""
-                    currentBlock = new Block();
-                    currentPath = "";
-                }
-                currentBlock.lines.add(line);
-            }
-        }
-
-        if (currentBlock != null && currentPath != null) {
-            blocks.put(currentPath, currentBlock);
-        }
-
-        return blocks;
-    }
-
-    /**
-     * Checks if the line is likely "key:" or "key: value", ignoring comments/blank. Skips lines
-     * starting with "-" or "#".
-     */
-    private boolean isLikelyKeyLine(String line) {
-        String trimmed = line.trim();
-        if (trimmed.isEmpty() || trimmed.startsWith("#") || trimmed.startsWith("-")) {
-            return false;
-        }
-        int colonIdx = trimmed.indexOf(':');
-        return (colonIdx > 0); // someKey:
-    }
-
-    // For a line like "security: ", returns "security" or "security.enableLogin"
-    // by looking at indentation. Very naive.
-    private static final Deque<String> pathStack = new ArrayDeque<>();
-    private static int currentIndentLevel = 0;
-
-    private String computePathForLine(String line) {
-        // count leading spaces
-        int leadingSpaces = 0;
-        for (char c : line.toCharArray()) {
-            if (c == ' ') leadingSpaces++;
-            else break;
-        }
-        // assume 2 spaces = 1 indent
-        int indentLevel = leadingSpaces / 2;
-
-        String trimmed = line.trim();
-        int colonIdx = trimmed.indexOf(':');
-        String keyName = trimmed.substring(0, colonIdx).trim();
-
-        // pop stack until we match the new indent level
-        while (currentIndentLevel >= indentLevel && !pathStack.isEmpty()) {
-            pathStack.pop();
-            currentIndentLevel--;
-        }
-
-        // push the new key
-        pathStack.push(keyName);
-        currentIndentLevel = indentLevel;
-
-        // build path by reversing the stack
-        String[] arr = pathStack.toArray(new String[0]);
-        List<String> reversed = Arrays.asList(arr);
-        Collections.reverse(reversed);
-        return String.join(".", reversed);
-    }
-
-    /**
-     * Simple holder for the lines that comprise a "block" (i.e. a key and its subsequent lines).
-     */
-    private static class Block {
-        List<String> lines = new ArrayList<>();
-    }
 }

src/main/java/stirling/software/SPDF/config/InitialSetup.java

@@ -44,7 +44,7 @@ public class InitialSetup {
         if (!GeneralUtils.isValidUUID(uuid)) {
             // Generating a random UUID as the secret key
             uuid = UUID.randomUUID().toString();
-            GeneralUtils.saveKeyToConfig("AutomaticallyGenerated.UUID", uuid);
+            GeneralUtils.saveKeyToSettings("AutomaticallyGenerated.UUID", uuid);
             applicationProperties.getAutomaticallyGenerated().setUUID(uuid);
         }
     }
@@ -54,7 +54,7 @@ public class InitialSetup {
         if (!GeneralUtils.isValidUUID(secretKey)) {
             // Generating a random UUID as the secret key
             secretKey = UUID.randomUUID().toString();
-            GeneralUtils.saveKeyToConfig("AutomaticallyGenerated.key", secretKey);
+            GeneralUtils.saveKeyToSettings("AutomaticallyGenerated.key", secretKey);
             applicationProperties.getAutomaticallyGenerated().setKey(secretKey);
         }
     }
@@ -64,8 +64,8 @@ public class InitialSetup {
                 "0.36.0", applicationProperties.getAutomaticallyGenerated().getAppVersion())) {
             Boolean csrf = applicationProperties.getSecurity().getCsrfDisabled();
             if (!csrf) {
-                GeneralUtils.saveKeyToConfig("security.csrfDisabled", false, false);
+                GeneralUtils.saveKeyToSettings("security.csrfDisabled", false);
-                GeneralUtils.saveKeyToConfig("system.enableAnalytics", "true", false);
+                GeneralUtils.saveKeyToSettings("system.enableAnalytics", true);
                 applicationProperties.getSecurity().setCsrfDisabled(false);
             }
         }
@@ -76,14 +76,14 @@ public class InitialSetup {
         String termsUrl = applicationProperties.getLegal().getTermsAndConditions();
         if (StringUtils.isEmpty(termsUrl)) {
             String defaultTermsUrl = "https://www.stirlingpdf.com/terms-and-conditions";
-            GeneralUtils.saveKeyToConfig("legal.termsAndConditions", defaultTermsUrl, false);
+            GeneralUtils.saveKeyToSettings("legal.termsAndConditions", defaultTermsUrl);
             applicationProperties.getLegal().setTermsAndConditions(defaultTermsUrl);
         }
         // Initialize Privacy Policy
         String privacyUrl = applicationProperties.getLegal().getPrivacyPolicy();
         if (StringUtils.isEmpty(privacyUrl)) {
             String defaultPrivacyUrl = "https://www.stirlingpdf.com/privacy-policy";
-            GeneralUtils.saveKeyToConfig("legal.privacyPolicy", defaultPrivacyUrl, false);
+            GeneralUtils.saveKeyToSettings("legal.privacyPolicy", defaultPrivacyUrl);
             applicationProperties.getLegal().setPrivacyPolicy(defaultPrivacyUrl);
         }
     }
@@ -97,7 +97,7 @@ public class InitialSetup {
             appVersion = props.getProperty("version");
         } catch (Exception e) {
         }
+        GeneralUtils.saveKeyToSettings("AutomaticallyGenerated.appVersion", appVersion);
         applicationProperties.getAutomaticallyGenerated().setAppVersion(appVersion);
-        GeneralUtils.saveKeyToConfig("AutomaticallyGenerated.appVersion", appVersion, false);
     }
 }

src/main/java/stirling/software/SPDF/config/InstallationPathConfig.java

@@ -1,6 +1,7 @@
 package stirling.software.SPDF.config;
 
 import java.io.File;
+import java.nio.file.Paths;
 
 import lombok.extern.slf4j.Slf4j;
 
@@ -46,26 +47,29 @@ public class InstallationPathConfig {
         if (Boolean.parseBoolean(System.getProperty("STIRLING_PDF_DESKTOP_UI", "false"))) {
             String os = System.getProperty("os.name").toLowerCase();
             if (os.contains("win")) {
-                return System.getenv("APPDATA") + File.separator + "Stirling-PDF" + File.separator;
+                return Paths.get(
+                                        System.getenv("APPDATA"), // parent path
+                                        "Stirling-PDF")
+                                .toString()
+                        + File.separator;
             } else if (os.contains("mac")) {
-                return System.getProperty("user.home")
+                return Paths.get(
-                        + File.separator
+                                        System.getProperty("user.home"),
-                        + "Library"
+                                        "Library",
-                        + File.separator
+                                        "Application Support",
-                        + "Application Support"
+                                        "Stirling-PDF")
-                        + File.separator
+                                .toString()
-                        + "Stirling-PDF"
                         + File.separator;
             } else {
-                return System.getProperty("user.home")
+                return Paths.get(
-                        + File.separator
+                                        System.getProperty("user.home"), // parent path
-                        + ".config"
+                                        ".config",
-                        + File.separator
+                                        "Stirling-PDF")
-                        + "Stirling-PDF"
+                                .toString()
                         + File.separator;
             }
         }
-        return "./";
+        return "." + File.separator;
     }
 
     public static String getPath() {

src/main/java/stirling/software/SPDF/config/RuntimePathConfig.java

@@ -1,8 +1,7 @@
 package stirling.software.SPDF.config;
 
-import java.io.File;
 import java.nio.file.Files;
-import java.nio.file.Paths;
+import java.nio.file.Path;
 
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.context.annotation.Configuration;
@@ -33,52 +32,48 @@ public class RuntimePathConfig {
         this.properties = properties;
         this.basePath = InstallationPathConfig.getPath();
 
-        String pipelinePath = basePath + "pipeline" + File.separator;
+        this.pipelinePath = Path.of(basePath, "pipeline").toString();
-        String watchedFoldersPath = pipelinePath + "watchedFolders" + File.separator;
+        String defaultWatchedFolders = Path.of(this.pipelinePath, "watchedFolders").toString();
-        String finishedFoldersPath = pipelinePath + "finishedFolders" + File.separator;
+        String defaultFinishedFolders = Path.of(this.pipelinePath, "finishedFolders").toString();
-        String webUiConfigsPath = pipelinePath + "defaultWebUIConfigs" + File.separator;
+        String defaultWebUIConfigs = Path.of(this.pipelinePath, "defaultWebUIConfigs").toString();
 
         Pipeline pipeline = properties.getSystem().getCustomPaths().getPipeline();
-        if (pipeline != null) {
-            if (!StringUtils.isEmpty(pipeline.getWatchedFoldersDir())) {
-                watchedFoldersPath = pipeline.getWatchedFoldersDir();
-            }
-            if (!StringUtils.isEmpty(pipeline.getFinishedFoldersDir())) {
-                finishedFoldersPath = pipeline.getFinishedFoldersDir();
-            }
-            if (!StringUtils.isEmpty(pipeline.getWebUIConfigsDir())) {
-                webUiConfigsPath = pipeline.getWebUIConfigsDir();
-            }
-        }
 
-        this.pipelinePath = pipelinePath;
+        this.pipelineWatchedFoldersPath =
-        this.pipelineWatchedFoldersPath = watchedFoldersPath;
+                resolvePath(
-        this.pipelineFinishedFoldersPath = finishedFoldersPath;
+                        defaultWatchedFolders,
-        this.pipelineDefaultWebUiConfigs = webUiConfigsPath;
+                        pipeline != null ? pipeline.getWatchedFoldersDir() : null);
+        this.pipelineFinishedFoldersPath =
+                resolvePath(
+                        defaultFinishedFolders,
+                        pipeline != null ? pipeline.getFinishedFoldersDir() : null);
+        this.pipelineDefaultWebUiConfigs =
+                resolvePath(
+                        defaultWebUIConfigs,
+                        pipeline != null ? pipeline.getWebUIConfigsDir() : null);
 
         boolean isDocker = isRunningInDocker();
 
         // Initialize Operation paths
-        String weasyPrintPath = isDocker ? "/opt/venv/bin/weasyprint" : "weasyprint";
+        String defaultWeasyPrintPath = isDocker ? "/opt/venv/bin/weasyprint" : "weasyprint";
-        String unoConvertPath = isDocker ? "/opt/venv/bin/unoconvert" : "unoconvert";
+        String defaultUnoConvertPath = isDocker ? "/opt/venv/bin/unoconvert" : "unoconvert";
 
-        // Check for custom operation paths
         Operations operations = properties.getSystem().getCustomPaths().getOperations();
-        if (operations != null) {
+        this.weasyPrintPath =
-            if (!StringUtils.isEmpty(operations.getWeasyprint())) {
+                resolvePath(
-                weasyPrintPath = operations.getWeasyprint();
+                        defaultWeasyPrintPath,
-            }
+                        operations != null ? operations.getWeasyprint() : null);
-            if (!StringUtils.isEmpty(operations.getUnoconvert())) {
+        this.unoConvertPath =
-                unoConvertPath = operations.getUnoconvert();
+                resolvePath(
-            }
+                        defaultUnoConvertPath,
-        }
+                        operations != null ? operations.getUnoconvert() : null);
+    }
 
-        // Assign operations final fields
+    private String resolvePath(String defaultPath, String customPath) {
-        this.weasyPrintPath = weasyPrintPath;
+        return StringUtils.isNotBlank(customPath) ? customPath : defaultPath;
-        this.unoConvertPath = unoConvertPath;
     }
 
     private boolean isRunningInDocker() {
-        return Files.exists(Paths.get("/.dockerenv"));
+        return Files.exists(Path.of("/.dockerenv"));
     }
 }

src/main/java/stirling/software/SPDF/config/YamlHelper.java

@@ -0,0 +1,479 @@
+package stirling.software.SPDF.config;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Deque;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Function;
+
+import org.snakeyaml.engine.v2.api.Dump;
+import org.snakeyaml.engine.v2.api.DumpSettings;
+import org.snakeyaml.engine.v2.api.LoadSettings;
+import org.snakeyaml.engine.v2.api.StreamDataWriter;
+import org.snakeyaml.engine.v2.common.FlowStyle;
+import org.snakeyaml.engine.v2.common.ScalarStyle;
+import org.snakeyaml.engine.v2.composer.Composer;
+import org.snakeyaml.engine.v2.nodes.MappingNode;
+import org.snakeyaml.engine.v2.nodes.Node;
+import org.snakeyaml.engine.v2.nodes.NodeTuple;
+import org.snakeyaml.engine.v2.nodes.ScalarNode;
+import org.snakeyaml.engine.v2.nodes.SequenceNode;
+import org.snakeyaml.engine.v2.nodes.Tag;
+import org.snakeyaml.engine.v2.parser.ParserImpl;
+import org.snakeyaml.engine.v2.scanner.StreamReader;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class YamlHelper {
+
+    // YAML dump settings with comment support and block flow style
+    private static final DumpSettings DUMP_SETTINGS =
+            DumpSettings.builder()
+                    .setDumpComments(true)
+                    .setWidth(Integer.MAX_VALUE)
+                    .setDefaultFlowStyle(FlowStyle.BLOCK)
+                    .build();
+
+    private final String yamlContent; // Stores the entire YAML content as a string
+
+    private LoadSettings loadSettings =
+            LoadSettings.builder()
+                    .setUseMarks(true)
+                    .setMaxAliasesForCollections(Integer.MAX_VALUE)
+                    .setAllowRecursiveKeys(true)
+                    .setParseComments(true)
+                    .build();
+
+    private Path originalFilePath;
+    private Node updatedRootNode;
+
+    // Constructor with custom LoadSettings and YAML string
+    public YamlHelper(LoadSettings loadSettings, String yamlContent) {
+        this.loadSettings = loadSettings;
+        this.yamlContent = yamlContent;
+    }
+
+    // Constructor that reads YAML from a file path
+    public YamlHelper(Path originalFilePath) throws IOException {
+        this.yamlContent = Files.readString(originalFilePath);
+        this.originalFilePath = originalFilePath;
+    }
+
+    /**
+     * Updates values in the target YAML based on values from the source YAML. It ensures that only
+     * existing keys in the target YAML are updated.
+     *
+     * @return true if at least one key was updated, false otherwise.
+     */
+    public boolean updateValuesFromYaml(YamlHelper sourceYaml, YamlHelper targetYaml) {
+        boolean updated = false;
+        Set<String> sourceKeys = sourceYaml.getAllKeys();
+        Set<String> targetKeys = targetYaml.getAllKeys();
+
+        for (String key : sourceKeys) {
+            String[] keyArray = key.split("\\.");
+
+            Object newValue = sourceYaml.getValueByExactKeyPath(keyArray);
+            Object currentValue = targetYaml.getValueByExactKeyPath(keyArray);
+            if (newValue != null
+                    && (!newValue.equals(currentValue) || !sourceKeys.equals(targetKeys))) {
+                boolean updatedKey = targetYaml.updateValue(Arrays.asList(keyArray), newValue);
+                if (updatedKey) updated = true;
+            }
+        }
+
+        return updated;
+    }
+
+    /**
+     * Updates a value in the YAML structure.
+     *
+     * @param keys The hierarchical keys leading to the value.
+     * @param newValue The new value to set.
+     * @return true if the value was updated, false otherwise.
+     */
+    public boolean updateValue(List<String> keys, Object newValue) {
+        return updateValue(getRootNode(), keys, newValue);
+    }
+
+    private boolean updateValue(Node node, List<String> keys, Object newValue) {
+        if (!(node instanceof MappingNode mappingNode)) return false;
+
+        List<NodeTuple> updatedTuples = new ArrayList<>();
+        boolean updated = false;
+
+        for (NodeTuple tuple : mappingNode.getValue()) {
+            ScalarNode keyNode = (tuple.getKeyNode() instanceof ScalarNode sk) ? sk : null;
+            if (keyNode == null || !keyNode.getValue().equals(keys.get(0))) {
+                updatedTuples.add(tuple);
+                continue;
+            }
+
+            Node valueNode = tuple.getValueNode();
+
+            if (keys.size() == 1) {
+                Tag tag = valueNode.getTag();
+                Node newValueNode = null;
+
+                if (isAnyInteger(newValue)) {
+                    newValueNode =
+                            new ScalarNode(Tag.INT, String.valueOf(newValue), ScalarStyle.PLAIN);
+                } else if (isFloat(newValue)) {
+                    Object floatValue = Float.valueOf(String.valueOf(newValue));
+                    newValueNode =
+                            new ScalarNode(
+                                    Tag.FLOAT, String.valueOf(floatValue), ScalarStyle.PLAIN);
+                } else if ("true".equals(newValue) || "false".equals(newValue)) {
+                    newValueNode =
+                            new ScalarNode(Tag.BOOL, String.valueOf(newValue), ScalarStyle.PLAIN);
+                } else if (newValue instanceof List<?> list) {
+                    List<Node> sequenceNodes = new ArrayList<>();
+                    for (Object item : list) {
+                        Object obj = String.valueOf(item);
+                        if (isAnyInteger(item)) {
+                            tag = Tag.INT;
+                        } else if (isFloat(item)) {
+                            obj = Float.valueOf(String.valueOf(item));
+                            tag = Tag.FLOAT;
+                        } else if ("true".equals(item) || "false".equals(item)) {
+                            tag = Tag.BOOL;
+                        } else if (item == null || "null".equals(item)) {
+                            tag = Tag.NULL;
+                        } else {
+                            tag = Tag.STR;
+                        }
+                        sequenceNodes.add(
+                                new ScalarNode(tag, String.valueOf(obj), ScalarStyle.PLAIN));
+                    }
+                    newValueNode = new SequenceNode(Tag.SEQ, sequenceNodes, FlowStyle.FLOW);
+                } else if (tag == Tag.NULL) {
+                    if ("true".equals(newValue)
+                            || "false".equals(newValue)
+                            || newValue instanceof Boolean) {
+                        tag = Tag.BOOL;
+                    }
+                    newValueNode = new ScalarNode(tag, String.valueOf(newValue), ScalarStyle.PLAIN);
+                } else {
+                    newValueNode = new ScalarNode(tag, String.valueOf(newValue), ScalarStyle.PLAIN);
+                }
+                copyComments(valueNode, newValueNode);
+
+                updatedTuples.add(new NodeTuple(keyNode, newValueNode));
+                updated = true;
+            } else if (valueNode instanceof MappingNode) {
+                updated = updateValue(valueNode, keys.subList(1, keys.size()), newValue);
+                updatedTuples.add(tuple);
+            }
+        }
+
+        if (updated) {
+            mappingNode.getValue().clear();
+            mappingNode.getValue().addAll(updatedTuples);
+        }
+        setNewNode(node);
+
+        return updated;
+    }
+
+    /**
+     * Fetches a value based on an exact key path.
+     *
+     * @param keys The key hierarchy leading to the value.
+     * @return The value if found, otherwise null.
+     */
+    public Object getValueByExactKeyPath(String... keys) {
+        return getValueByExactKeyPath(getRootNode(), new ArrayDeque<>(List.of(keys)));
+    }
+
+    private Object getValueByExactKeyPath(Node node, Deque<String> keyQueue) {
+        if (!(node instanceof MappingNode mappingNode)) return null;
+
+        String currentKey = keyQueue.poll();
+        if (currentKey == null) return null;
+
+        for (NodeTuple tuple : mappingNode.getValue()) {
+            if (tuple.getKeyNode() instanceof ScalarNode keyNode
+                    && keyNode.getValue().equals(currentKey)) {
+                if (keyQueue.isEmpty()) {
+                    Node valueNode = tuple.getValueNode();
+
+                    if (valueNode instanceof ScalarNode scalarValueNode) {
+                        return scalarValueNode.getValue();
+                    } else if (valueNode instanceof MappingNode subMapping) {
+                        return getValueByExactKeyPath(subMapping, keyQueue);
+                    } else if (valueNode instanceof SequenceNode sequenceNode) {
+                        List<Object> valuesList = new ArrayList<>();
+                        for (Node o : sequenceNode.getValue()) {
+                            if (o instanceof ScalarNode scalarValue) {
+                                valuesList.add(scalarValue.getValue());
+                            }
+                        }
+                        return valuesList;
+                    } else {
+                        return null;
+                    }
+                }
+                return getValueByExactKeyPath(tuple.getValueNode(), keyQueue);
+            }
+        }
+        return null;
+    }
+
+    private Set<String> cachedKeys;
+
+    /**
+     * Retrieves the set of all keys present in the YAML structure. Keys are returned as
+     * dot-separated paths for nested keys.
+     *
+     * @return A set containing all keys in dot notation.
+     */
+    public Set<String> getAllKeys() {
+        if (cachedKeys == null) {
+            cachedKeys = getAllKeys(getRootNode());
+        }
+        return cachedKeys;
+    }
+
+    /**
+     * Collects all keys from the YAML node recursively.
+     *
+     * @param node The current YAML node.
+     * @param currentPath The accumulated path of keys.
+     * @param allKeys The set storing all collected keys.
+     */
+    private Set<String> getAllKeys(Node node) {
+        Set<String> allKeys = new LinkedHashSet<>();
+        collectKeys(node, "", allKeys);
+        return allKeys;
+    }
+
+    /**
+     * Recursively traverses the YAML structure to collect all keys.
+     *
+     * @param node The current node in the YAML structure.
+     * @param currentPath The accumulated key path.
+     * @param allKeys The set storing collected keys.
+     */
+    private void collectKeys(Node node, String currentPath, Set<String> allKeys) {
+        if (node instanceof MappingNode mappingNode) {
+            for (NodeTuple tuple : mappingNode.getValue()) {
+                if (tuple.getKeyNode() instanceof ScalarNode keyNode) {
+                    String newPath =
+                            currentPath.isEmpty()
+                                    ? keyNode.getValue()
+                                    : currentPath + "." + keyNode.getValue();
+                    allKeys.add(newPath);
+                    collectKeys(tuple.getValueNode(), newPath, allKeys);
+                }
+            }
+        }
+    }
+
+    /**
+     * Retrieves the root node of the YAML document. If a new node was previously set, it is
+     * returned instead.
+     *
+     * @return The root node of the YAML structure.
+     */
+    private Node getRootNode() {
+        if (this.updatedRootNode != null) {
+            return this.updatedRootNode;
+        }
+        Composer composer = new Composer(loadSettings, getParserImpl());
+        Optional<Node> rootNodeOpt = composer.getSingleNode();
+        if (rootNodeOpt.isPresent()) {
+            return rootNodeOpt.get();
+        }
+        return null;
+    }
+
+    /**
+     * Sets a new root node, allowing modifications to be tracked.
+     *
+     * @param newRootNode The modified root node.
+     */
+    public void setNewNode(Node newRootNode) {
+        this.updatedRootNode = newRootNode;
+    }
+
+    /**
+     * Retrieves the current root node (either the original or the updated one).
+     *
+     * @return The root node.
+     */
+    public Node getUpdatedRootNode() {
+        if (this.updatedRootNode == null) {
+            this.updatedRootNode = getRootNode();
+        }
+        return this.updatedRootNode;
+    }
+
+    /**
+     * Initializes the YAML parser.
+     *
+     * @return The configured parser.
+     */
+    private ParserImpl getParserImpl() {
+        return new ParserImpl(loadSettings, getStreamReader());
+    }
+
+    /**
+     * Creates a stream reader for the YAML content.
+     *
+     * @return The configured stream reader.
+     */
+    private StreamReader getStreamReader() {
+        return new StreamReader(loadSettings, yamlContent);
+    }
+
+    public MappingNode save(Path saveFilePath) throws IOException {
+        if (!saveFilePath.equals(originalFilePath)) {
+            Files.writeString(saveFilePath, convertNodeToYaml(getUpdatedRootNode()));
+        }
+        return (MappingNode) getUpdatedRootNode();
+    }
+
+    public void saveOverride(Path saveFilePath) throws IOException {
+        Files.writeString(saveFilePath, convertNodeToYaml(getUpdatedRootNode()));
+    }
+
+    /**
+     * Converts a YAML node back to a YAML-formatted string.
+     *
+     * @param rootNode The root node to be converted.
+     * @return A YAML-formatted string.
+     */
+    public String convertNodeToYaml(Node rootNode) {
+        StringWriter writer = new StringWriter();
+        StreamDataWriter streamDataWriter =
+                new StreamDataWriter() {
+                    @Override
+                    public void write(String str) {
+                        writer.write(str);
+                    }
+
+                    @Override
+                    public void write(String str, int off, int len) {
+                        writer.write(str, off, len);
+                    }
+                };
+
+        new Dump(DUMP_SETTINGS).dumpNode(rootNode, streamDataWriter);
+        return writer.toString();
+    }
+
+    private static boolean isParsable(String value, Function<String, ?> parser) {
+        try {
+            parser.apply(value);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    /**
+     * Checks if a given object is an integer.
+     *
+     * @param object The object to check.
+     * @return True if the object represents an integer, false otherwise.
+     */
+    @SuppressWarnings("UnnecessaryTemporaryOnConversionFromString")
+    public static boolean isInteger(Object object) {
+        if (object instanceof Integer
+                || object instanceof Short
+                || object instanceof Byte
+                || object instanceof Long) {
+            return true;
+        }
+        if (object instanceof String str) {
+            return isParsable(str, Integer::parseInt);
+        }
+        return false;
+    }
+
+    /**
+     * Checks if a given object is a floating-point number.
+     *
+     * @param object The object to check.
+     * @return True if the object represents a float, false otherwise.
+     */
+    @SuppressWarnings("UnnecessaryTemporaryOnConversionFromString")
+    public static boolean isFloat(Object object) {
+        return (object instanceof Float || object instanceof Double)
+                || (object instanceof String str && isParsable(str, Float::parseFloat));
+    }
+
+    /**
+     * Checks if a given object is a short integer.
+     *
+     * @param object The object to check.
+     * @return True if the object represents a short integer, false otherwise.
+     */
+    @SuppressWarnings("UnnecessaryTemporaryOnConversionFromString")
+    public static boolean isShort(Object object) {
+        return (object instanceof Long)
+                || (object instanceof String str && isParsable(str, Short::parseShort));
+    }
+
+    /**
+     * Checks if a given object is a byte.
+     *
+     * @param object The object to check.
+     * @return True if the object represents a byte, false otherwise.
+     */
+    @SuppressWarnings("UnnecessaryTemporaryOnConversionFromString")
+    public static boolean isByte(Object object) {
+        return (object instanceof Long)
+                || (object instanceof String str && isParsable(str, Byte::parseByte));
+    }
+
+    /**
+     * Checks if a given object is a long integer.
+     *
+     * @param object The object to check.
+     * @return True if the object represents a long integer, false otherwise.
+     */
+    @SuppressWarnings("UnnecessaryTemporaryOnConversionFromString")
+    public static boolean isLong(Object object) {
+        return (object instanceof Long)
+                || (object instanceof String str && isParsable(str, Long::parseLong));
+    }
+
+    /**
+     * Determines if an object is any type of integer (short, byte, long, or int).
+     *
+     * @param object The object to check.
+     * @return True if the object represents an integer type, false otherwise.
+     */
+    public static boolean isAnyInteger(Object object) {
+        return isInteger(object) || isShort(object) || isByte(object) || isLong(object);
+    }
+
+    /**
+     * Copies comments from an old node to a new one.
+     *
+     * @param oldNode The original node with comments.
+     * @param newValueNode The new node to which comments should be copied.
+     */
+    private void copyComments(Node oldNode, Node newValueNode) {
+        if (oldNode == null || newValueNode == null) return;
+        if (oldNode.getBlockComments() != null) {
+            newValueNode.setBlockComments(oldNode.getBlockComments());
+        }
+        if (oldNode.getInLineComments() != null) {
+            newValueNode.setInLineComments(oldNode.getInLineComments());
+        }
+        if (oldNode.getEndComments() != null) {
+            newValueNode.setEndComments(oldNode.getEndComments());
+        }
+    }
+}

src/main/java/stirling/software/SPDF/config/security/CustomLogoutSuccessHandler.java

@@ -45,12 +45,12 @@ public class CustomLogoutSuccessHandler extends SimpleUrlLogoutSuccessHandler {
             throws IOException {
         if (!response.isCommitted()) {
             if (authentication != null) {
-                if (authentication instanceof Saml2Authentication) {
+                if (authentication instanceof Saml2Authentication samlAuthentication) {
                     // Handle SAML2 logout redirection
-                    getRedirect_saml2(request, response, authentication);
+                    getRedirect_saml2(request, response, samlAuthentication);
-                } else if (authentication instanceof OAuth2AuthenticationToken) {
+                } else if (authentication instanceof OAuth2AuthenticationToken oAuthToken) {
                     // Handle OAuth2 logout redirection
-                    getRedirect_oauth2(request, response, authentication);
+                    getRedirect_oauth2(request, response, oAuthToken);
                 } else if (authentication instanceof UsernamePasswordAuthenticationToken) {
                     // Handle Username/Password logout
                     getRedirectStrategy().sendRedirect(request, response, LOGOUT_PATH);
@@ -71,13 +71,14 @@ public class CustomLogoutSuccessHandler extends SimpleUrlLogoutSuccessHandler {
 
     // Redirect for SAML2 authentication logout
     private void getRedirect_saml2(
-            HttpServletRequest request, HttpServletResponse response, Authentication authentication)
+            HttpServletRequest request,
+            HttpServletResponse response,
+            Saml2Authentication samlAuthentication)
             throws IOException {
 
         SAML2 samlConf = applicationProperties.getSecurity().getSaml2();
         String registrationId = samlConf.getRegistrationId();
 
-        Saml2Authentication samlAuthentication = (Saml2Authentication) authentication;
         CustomSaml2AuthenticatedPrincipal principal =
                 (CustomSaml2AuthenticatedPrincipal) samlAuthentication.getPrincipal();
 
@@ -115,32 +116,46 @@ public class CustomLogoutSuccessHandler extends SimpleUrlLogoutSuccessHandler {
 
     // Redirect for OAuth2 authentication logout
     private void getRedirect_oauth2(
-            HttpServletRequest request, HttpServletResponse response, Authentication authentication)
+            HttpServletRequest request,
+            HttpServletResponse response,
+            OAuth2AuthenticationToken oAuthToken)
             throws IOException {
         String registrationId;
         OAUTH2 oauth = applicationProperties.getSecurity().getOauth2();
         String path = checkForErrors(request);
 
-        if (authentication instanceof OAuth2AuthenticationToken oauthToken) {
-            registrationId = oauthToken.getAuthorizedClientRegistrationId();
-        } else {
-            registrationId = oauth.getProvider() != null ? oauth.getProvider() : "";
-        }
-
         String redirectUrl = UrlUtils.getOrigin(request) + "/login?" + path;
+        registrationId = oAuthToken.getAuthorizedClientRegistrationId();
 
         // Redirect based on OAuth2 provider
         switch (registrationId.toLowerCase()) {
             case "keycloak" -> {
                 KeycloakProvider keycloak = oauth.getClient().getKeycloak();
-                String logoutUrl =
+
-                        keycloak.getIssuer()
+                boolean isKeycloak = !keycloak.getIssuer().isBlank();
-                                + "/protocol/openid-connect/logout"
+                boolean isCustomOAuth = !oauth.getIssuer().isBlank();
-                                + "?client_id="
+
-                                + keycloak.getClientId()
+                String logoutUrl = redirectUrl;
-                                + "&post_logout_redirect_uri="
+
-                                + response.encodeRedirectURL(redirectUrl);
+                if (isKeycloak) {
-                log.info("Redirecting to Keycloak logout URL: {}", logoutUrl);
+                    logoutUrl = keycloak.getIssuer();
+                } else if (isCustomOAuth) {
+                    logoutUrl = oauth.getIssuer();
+                }
+                if (isKeycloak || isCustomOAuth) {
+                    logoutUrl +=
+                            "/protocol/openid-connect/logout"
+                                    + "?client_id="
+                                    + oauth.getClientId()
+                                    + "&post_logout_redirect_uri="
+                                    + response.encodeRedirectURL(redirectUrl);
+                    log.info("Redirecting to Keycloak logout URL: {}", logoutUrl);
+                } else {
+                    log.info(
+                            "No redirect URL for {} available. Redirecting to default logout URL: {}",
+                            registrationId,
+                            logoutUrl);
+                }
                 response.sendRedirect(logoutUrl);
             }
             case "github", "google" -> {

src/main/java/stirling/software/SPDF/config/security/IPRateLimitingFilter.java

@@ -25,8 +25,8 @@ public class IPRateLimitingFilter implements Filter {
     @Override
     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
             throws IOException, ServletException {
-        if (request instanceof HttpServletRequest) {
+        if (request instanceof HttpServletRequest httpServletRequest) {
-            HttpServletRequest httpRequest = (HttpServletRequest) request;
+            HttpServletRequest httpRequest = httpServletRequest;
             String method = httpRequest.getMethod();
             String requestURI = httpRequest.getRequestURI();
             // Check if the request is for static resources

src/main/java/stirling/software/SPDF/config/security/InitialSecuritySetup.java

@@ -36,12 +36,13 @@ public class InitialSecuritySetup {
     @PostConstruct
     public void init() {
         try {
-            if (databaseService.hasBackup()) {
-                databaseService.importDatabase();
-            }
 
             if (!userService.hasUsers()) {
-                initializeAdminUser();
+                if (databaseService.hasBackup()) {
+                    databaseService.importDatabase();
+                } else {
+                    initializeAdminUser();
+                }
             }
 
             userService.migrateOauth2ToSSO();

src/main/java/stirling/software/SPDF/config/security/SecurityConfiguration.java

@@ -285,7 +285,7 @@ public class SecurityConfiguration {
                                 });
             }
         } else {
-            log.info("SAML 2 login is not enabled. Using default.");
+            log.debug("SAML 2 login is not enabled. Using default.");
             http.authorizeHttpRequests(authz -> authz.anyRequest().permitAll());
         }
         return http.build();

src/main/java/stirling/software/SPDF/config/security/UserAuthenticationFilter.java

@@ -123,9 +123,11 @@ public class UserAuthenticationFilter extends OncePerRequestFilter {
                 response.setStatus(HttpStatus.UNAUTHORIZED.value());
                 response.getWriter()
                         .write(
-                                "Authentication required. Please provide a X-API-KEY in request header.\n"
+                                "Authentication required. Please provide a X-API-KEY in request"
+                                        + " header.\n"
                                         + "This is found in Settings -> Account Settings -> API Key\n"
-                                        + "Alternatively you can disable authentication if this is unexpected");
+                                        + "Alternatively you can disable authentication if this is"
+                                        + " unexpected");
                 return;
             }
         }
@@ -141,21 +143,21 @@ public class UserAuthenticationFilter extends OncePerRequestFilter {
             // Extract username and determine the login method
             Object principal = authentication.getPrincipal();
             String username = null;
-            if (principal instanceof UserDetails) {
+            if (principal instanceof UserDetails detailsUser) {
-                username = ((UserDetails) principal).getUsername();
+                username = detailsUser.getUsername();
                 loginMethod = LoginMethod.USERDETAILS;
-            } else if (principal instanceof OAuth2User) {
+            } else if (principal instanceof OAuth2User oAuth2User) {
-                username = ((OAuth2User) principal).getName();
+                username = oAuth2User.getName();
                 loginMethod = LoginMethod.OAUTH2USER;
                 OAUTH2 oAuth = securityProp.getOauth2();
                 blockRegistration = oAuth != null && oAuth.getBlockRegistration();
-            } else if (principal instanceof CustomSaml2AuthenticatedPrincipal) {
+            } else if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
-                username = ((CustomSaml2AuthenticatedPrincipal) principal).name();
+                username = saml2User.name();
                 loginMethod = LoginMethod.SAML2USER;
                 SAML2 saml2 = securityProp.getSaml2();
                 blockRegistration = saml2 != null && saml2.getBlockRegistration();
-            } else if (principal instanceof String) {
+            } else if (principal instanceof String stringUser) {
-                username = (String) principal;
+                username = stringUser;
                 loginMethod = LoginMethod.STRINGUSER;
             }
 
@@ -170,8 +172,8 @@ public class UserAuthenticationFilter extends OncePerRequestFilter {
                 boolean isUserDisabled = userService.isUserDisabled(username);
 
                 boolean notSsoLogin =
-                        !loginMethod.equals(LoginMethod.OAUTH2USER)
+                        !LoginMethod.OAUTH2USER.equals(loginMethod)
-                                && !loginMethod.equals(LoginMethod.SAML2USER);
+                                && !LoginMethod.SAML2USER.equals(loginMethod);
 
                 // Block user registration if not allowed by configuration
                 if (blockRegistration && !isUserExists) {

src/main/java/stirling/software/SPDF/config/security/UserService.java

@@ -121,12 +121,14 @@ public class UserService implements UserServiceInterface {
     }
 
     public User addApiKeyToUser(String username) {
-        Optional<User> user = findByUsernameIgnoreCase(username);
+        Optional<User> userOpt = findByUsernameIgnoreCase(username);
-        if (user.isPresent()) {
+        User user = saveUser(userOpt, generateApiKey());
-            user.get().setApiKey(generateApiKey());
+        try {
-            return userRepository.save(user.get());
+            databaseService.exportDatabase();
+        } catch (SQLException | UnsupportedProviderException e) {
+            log.error("Error exporting database after adding API key to user", e);
         }
-        throw new UsernameNotFoundException("User not found");
+        return user;
     }
 
     public User refreshApiKeyForUser(String username) {
@@ -171,6 +173,14 @@ public class UserService implements UserServiceInterface {
         saveUser(username, authenticationType, Role.USER.getRoleId());
     }
 
+    private User saveUser(Optional<User> user, String apiKey) {
+        if (user.isPresent()) {
+            user.get().setApiKey(apiKey);
+            return userRepository.save(user.get());
+        }
+        throw new UsernameNotFoundException("User not found");
+    }
+
     public void saveUser(String username, AuthenticationType authenticationType, String role)
             throws IllegalArgumentException, SQLException, UnsupportedProviderException {
         if (!isUsernameValid(username)) {
@@ -375,14 +385,14 @@ public class UserService implements UserServiceInterface {
         for (Object principal : sessionRegistry.getAllPrincipals()) {
             for (SessionInformation sessionsInformation :
                     sessionRegistry.getAllSessions(principal, false)) {
-                if (principal instanceof UserDetails userDetails) {
+                if (principal instanceof UserDetails detailsUser) {
-                    usernameP = userDetails.getUsername();
+                    usernameP = detailsUser.getUsername();
                 } else if (principal instanceof OAuth2User oAuth2User) {
                     usernameP = oAuth2User.getName();
                 } else if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
                     usernameP = saml2User.name();
-                } else if (principal instanceof String) {
+                } else if (principal instanceof String stringUser) {
-                    usernameP = (String) principal;
+                    usernameP = stringUser;
                 }
                 if (usernameP.equalsIgnoreCase(username)) {
                     sessionRegistry.expireSession(sessionsInformation.getSessionId());
@@ -394,17 +404,17 @@ public class UserService implements UserServiceInterface {
     public String getCurrentUsername() {
         Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();
 
-        if (principal instanceof UserDetails) {
+        if (principal instanceof UserDetails detailsUser) {
-            return ((UserDetails) principal).getUsername();
+            return detailsUser.getUsername();
-        } else if (principal instanceof OAuth2User) {
+        } else if (principal instanceof OAuth2User oAuth2User) {
-            return ((OAuth2User) principal)
+            return oAuth2User.getAttribute(
-                    .getAttribute(
+                    applicationProperties.getSecurity().getOauth2().getUseAsUsername());
-                            applicationProperties.getSecurity().getOauth2().getUseAsUsername());
+        } else if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
-        } else if (principal instanceof CustomSaml2AuthenticatedPrincipal) {
+            return saml2User.name();
-            return ((CustomSaml2AuthenticatedPrincipal) principal).name();
+        } else if (principal instanceof String stringUser) {
-        } else {
+            return stringUser;
-            return principal.toString();
         }
+        return null;
     }
 
     @Transactional

src/main/java/stirling/software/SPDF/config/security/database/DatabaseConfig.java

@@ -1,7 +1,5 @@
 package stirling.software.SPDF.config.security.database;
 
-import java.io.File;
-
 import javax.sql.DataSource;
 
 import org.springframework.beans.factory.annotation.Qualifier;
@@ -37,8 +35,8 @@ public class DatabaseConfig {
         DATASOURCE_DEFAULT_URL =
                 "jdbc:h2:file:"
                         + InstallationPathConfig.getConfigPath()
-                        + File.separator
                         + "stirling-pdf-DB-2.3.232;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE";
+        log.debug("Database URL: {}", DATASOURCE_DEFAULT_URL);
         this.applicationProperties = applicationProperties;
         this.runningEE = runningEE;
     }

src/main/java/stirling/software/SPDF/config/security/oauth2/CustomOAuth2AuthenticationFailureHandler.java

@@ -42,12 +42,12 @@ public class CustomOAuth2AuthenticationFailureHandler
             getRedirectStrategy().sendRedirect(request, response, "/logout?error=locked");
             return;
         }
-        if (exception instanceof OAuth2AuthenticationException) {
+        if (exception instanceof OAuth2AuthenticationException oAuth2Exception) {
-            OAuth2Error error = ((OAuth2AuthenticationException) exception).getError();
+            OAuth2Error error = oAuth2Exception.getError();
 
             String errorCode = error.getErrorCode();
 
-            if (error.getErrorCode().equals("Password must not be null")) {
+            if ("Password must not be null".equals(error.getErrorCode())) {
                 errorCode = "userAlreadyExistsWeb";
             }
 

src/main/java/stirling/software/SPDF/config/security/oauth2/CustomOAuth2AuthenticationSuccessHandler.java

@@ -47,10 +47,10 @@ public class CustomOAuth2AuthenticationSuccessHandler
         Object principal = authentication.getPrincipal();
         String username = "";
 
-        if (principal instanceof OAuth2User oauthUser) {
+        if (principal instanceof OAuth2User oAuth2User) {
-            username = oauthUser.getName();
+            username = oAuth2User.getName();
-        } else if (principal instanceof UserDetails oauthUser) {
+        } else if (principal instanceof UserDetails detailsUser) {
-            username = oauthUser.getUsername();
+            username = detailsUser.getUsername();
         }
 
         // Get the saved request

src/main/java/stirling/software/SPDF/config/security/oauth2/OAuth2Configuration.java

@@ -200,7 +200,7 @@ public class OAuth2Configuration {
                                 .scope(oidcProvider.getScopes())
                                 .userNameAttributeName(oidcProvider.getUseAsUsername().getName())
                                 .clientName(clientName)
-                                .redirectUri(REDIRECT_URI_PATH + name)
+                                .redirectUri(REDIRECT_URI_PATH + "oidc")
                                 .authorizationGrantType(AUTHORIZATION_CODE)
                                 .build())
                 : Optional.empty();
@@ -230,7 +230,7 @@ public class OAuth2Configuration {
                         // Add existing OAUTH2 Authorities
                         mappedAuthorities.add(new SimpleGrantedAuthority(authority.getAuthority()));
                         // Add Authorities from database for existing user, if user is present.
-                        if (authority instanceof OAuth2UserAuthority oauth2Auth) {
+                        if (authority instanceof OAuth2UserAuthority oAuth2Auth) {
                             String useAsUsername =
                                     applicationProperties
                                             .getSecurity()
@@ -238,7 +238,7 @@ public class OAuth2Configuration {
                                             .getUseAsUsername();
                             Optional<User> userOpt =
                                     userService.findByUsernameIgnoreCase(
-                                            (String) oauth2Auth.getAttributes().get(useAsUsername));
+                                            (String) oAuth2Auth.getAttributes().get(useAsUsername));
                             if (userOpt.isPresent()) {
                                 User user = userOpt.get();
                                 mappedAuthorities.add(

src/main/java/stirling/software/SPDF/config/security/saml2/CertificateUtils.java

@@ -40,13 +40,12 @@ public class CertificateUtils {
             Object object = pemParser.readObject();
             JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
 
-            if (object instanceof PEMKeyPair) {
+            if (object instanceof PEMKeyPair keypair) {
                 // Handle traditional RSA private key format
-                PEMKeyPair keypair = (PEMKeyPair) object;
                 return (RSAPrivateKey) converter.getPrivateKey(keypair.getPrivateKeyInfo());
-            } else if (object instanceof PrivateKeyInfo) {
+            } else if (object instanceof PrivateKeyInfo keyInfo) {
                 // Handle PKCS#8 format
-                return (RSAPrivateKey) converter.getPrivateKey((PrivateKeyInfo) object);
+                return (RSAPrivateKey) converter.getPrivateKey(keyInfo);
             } else {
                 throw new IllegalArgumentException(
                         "Unsupported key format: "

src/main/java/stirling/software/SPDF/config/security/saml2/CustomSaml2AuthenticatedPrincipal.java

@@ -8,7 +8,11 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.security.saml2.provider.service.authentication.Saml2AuthenticatedPrincipal;
 
 @ConditionalOnProperty(name = "security.saml2.enabled", havingValue = "true")
-public record CustomSaml2AuthenticatedPrincipal(String name, Map<String, List<Object>> attributes, String nameId, List<String> sessionIndexes)
+public record CustomSaml2AuthenticatedPrincipal(
+        String name,
+        Map<String, List<Object>> attributes,
+        String nameId,
+        List<String> sessionIndexes)
         implements Saml2AuthenticatedPrincipal, Serializable {
 
     @Override
@@ -20,5 +24,4 @@ public record CustomSaml2AuthenticatedPrincipal(String name, Map<String, List<Ob
     public Map<String, List<Object>> getAttributes() {
         return this.attributes;
     }
-
 }

src/main/java/stirling/software/SPDF/config/security/saml2/CustomSaml2AuthenticationSuccessHandler.java

@@ -41,8 +41,8 @@ public class CustomSaml2AuthenticationSuccessHandler
         Object principal = authentication.getPrincipal();
         log.debug("Starting SAML2 authentication success handling");
 
-        if (principal instanceof CustomSaml2AuthenticatedPrincipal) {
+        if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2Principal) {
-            String username = ((CustomSaml2AuthenticatedPrincipal) principal).name();
+            String username = saml2Principal.name();
             log.debug("Authenticated principal found for user: {}", username);
 
             HttpSession session = request.getSession(false);

src/main/java/stirling/software/SPDF/config/security/session/SessionPersistentRegistry.java

@@ -43,14 +43,14 @@ public class SessionPersistentRegistry implements SessionRegistry {
         List<SessionInformation> sessionInformations = new ArrayList<>();
         String principalName = null;
 
-        if (principal instanceof UserDetails) {
+        if (principal instanceof UserDetails detailsUser) {
-            principalName = ((UserDetails) principal).getUsername();
+            principalName = detailsUser.getUsername();
-        } else if (principal instanceof OAuth2User) {
+        } else if (principal instanceof OAuth2User oAuth2User) {
-            principalName = ((OAuth2User) principal).getName();
+            principalName = oAuth2User.getName();
-        } else if (principal instanceof CustomSaml2AuthenticatedPrincipal) {
+        } else if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
-            principalName = ((CustomSaml2AuthenticatedPrincipal) principal).name();
+            principalName = saml2User.name();
-        } else if (principal instanceof String) {
+        } else if (principal instanceof String stringUser) {
-            principalName = (String) principal;
+            principalName = stringUser;
         }
 
         if (principalName != null) {
@@ -74,14 +74,14 @@ public class SessionPersistentRegistry implements SessionRegistry {
     public void registerNewSession(String sessionId, Object principal) {
         String principalName = null;
 
-        if (principal instanceof UserDetails) {
+        if (principal instanceof UserDetails detailsUser) {
-            principalName = ((UserDetails) principal).getUsername();
+            principalName = detailsUser.getUsername();
-        } else if (principal instanceof OAuth2User) {
+        } else if (principal instanceof OAuth2User oAuth2User) {
-            principalName = ((OAuth2User) principal).getName();
+            principalName = oAuth2User.getName();
-        } else if (principal instanceof CustomSaml2AuthenticatedPrincipal) {
+        } else if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
-            principalName = ((CustomSaml2AuthenticatedPrincipal) principal).name();
+            principalName = saml2User.name();
-        } else if (principal instanceof String) {
+        } else if (principal instanceof String stringUser) {
-            principalName = (String) principal;
+            principalName = stringUser;
         }
 
         if (principalName != null) {

src/main/java/stirling/software/SPDF/controller/api/SettingsController.java

@@ -31,14 +31,14 @@ public class SettingsController {
     @PostMapping("/update-enable-analytics")
     @Hidden
     public ResponseEntity<String> updateApiKey(@RequestBody Boolean enabled) throws IOException {
-        if (!"undefined".equals(applicationProperties.getSystem().getEnableAnalytics())) {
+        if (applicationProperties.getSystem().getEnableAnalytics() != null) {
             return ResponseEntity.status(HttpStatus.ALREADY_REPORTED)
                     .body(
                             "Setting has already been set, To adjust please edit "
                                     + InstallationPathConfig.getSettingsPath());
         }
-        GeneralUtils.saveKeyToConfig("system.enableAnalytics", String.valueOf(enabled), false);
+        GeneralUtils.saveKeyToSettings("system.enableAnalytics", enabled);
-        applicationProperties.getSystem().setEnableAnalytics(String.valueOf(enabled));
+        applicationProperties.getSystem().setEnableAnalytics(enabled);
         return ResponseEntity.ok("Updated");
     }
 }

src/main/java/stirling/software/SPDF/controller/api/UserController.java

@@ -297,14 +297,14 @@ public class UserController {
             for (Object principal : principals) {
                 List<SessionInformation> sessionsInformation =
                         sessionRegistry.getAllSessions(principal, false);
-                if (principal instanceof UserDetails) {
+                if (principal instanceof UserDetails detailsUser) {
-                    userNameP = ((UserDetails) principal).getUsername();
+                    userNameP = detailsUser.getUsername();
-                } else if (principal instanceof OAuth2User) {
+                } else if (principal instanceof OAuth2User oAuth2User) {
-                    userNameP = ((OAuth2User) principal).getName();
+                    userNameP = oAuth2User.getName();
-                } else if (principal instanceof CustomSaml2AuthenticatedPrincipal) {
+                } else if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
-                    userNameP = ((CustomSaml2AuthenticatedPrincipal) principal).name();
+                    userNameP = saml2User.name();
-                } else if (principal instanceof String) {
+                } else if (principal instanceof String stringUser) {
-                    userNameP = (String) principal;
+                    userNameP = stringUser;
                 }
                 if (userNameP.equalsIgnoreCase(username)) {
                     for (SessionInformation sessionInfo : sessionsInformation) {

src/main/java/stirling/software/SPDF/controller/api/misc/AutoSplitPdfController.java

@@ -61,8 +61,8 @@ public class AutoSplitPdfController {
     private static String decodeQRCode(BufferedImage bufferedImage) {
         LuminanceSource source;
 
-        if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferByte) {
+        if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferByte dataBufferByte) {
-            byte[] pixels = ((DataBufferByte) bufferedImage.getRaster().getDataBuffer()).getData();
+            byte[] pixels = dataBufferByte.getData();
             source =
                     new PlanarYUVLuminanceSource(
                             pixels,
@@ -73,8 +73,9 @@ public class AutoSplitPdfController {
                             bufferedImage.getWidth(),
                             bufferedImage.getHeight(),
                             false);
-        } else if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferInt) {
+        } else if (bufferedImage.getRaster().getDataBuffer()
-            int[] pixels = ((DataBufferInt) bufferedImage.getRaster().getDataBuffer()).getData();
+                instanceof DataBufferInt dataBufferInt) {
+            int[] pixels = dataBufferInt.getData();
             byte[] newPixels = new byte[pixels.length];
             for (int i = 0; i < pixels.length; i++) {
                 newPixels[i] = (byte) (pixels[i] & 0xff);
@@ -91,7 +92,8 @@ public class AutoSplitPdfController {
                             false);
         } else {
             throw new IllegalArgumentException(
-                    "BufferedImage must have 8-bit gray scale, 24-bit RGB, 32-bit ARGB (packed int), byte gray, or 3-byte/4-byte RGB image data");
+                    "BufferedImage must have 8-bit gray scale, 24-bit RGB, 32-bit ARGB (packed"
+                            + " int), byte gray, or 3-byte/4-byte RGB image data");
         }
 
         BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
@@ -108,7 +110,10 @@ public class AutoSplitPdfController {
     @Operation(
             summary = "Auto split PDF pages into separate documents",
             description =
-                    "This endpoint accepts a PDF file, scans each page for a specific QR code, and splits the document at the QR code boundaries. The output is a zip file containing each separate PDF document. Input:PDF Output:ZIP-PDF Type:SISO")
+                    "This endpoint accepts a PDF file, scans each page for a specific QR code, and"
+                        + " splits the document at the QR code boundaries. The output is a zip file"
+                        + " containing each separate PDF document. Input:PDF Output:ZIP-PDF"
+                        + " Type:SISO")
     public ResponseEntity<byte[]> autoSplitPdf(@ModelAttribute AutoSplitPdfRequest request)
             throws IOException {
         MultipartFile file = request.getFileInput();

src/main/java/stirling/software/SPDF/controller/api/misc/CompressController.java

@@ -63,8 +63,7 @@ public class CompressController {
                 if (res != null && res.getXObjectNames() != null) {
                     for (COSName name : res.getXObjectNames()) {
                         PDXObject xobj = res.getXObject(name);
-                        if (xobj instanceof PDImageXObject) {
+                        if (xobj instanceof PDImageXObject image) {
-                            PDImageXObject image = (PDImageXObject) xobj;
                             BufferedImage bufferedImage = image.getImage();
 
                             int newWidth = (int) (bufferedImage.getWidth() * scaleFactor);
@@ -119,7 +118,8 @@ public class CompressController {
     @Operation(
             summary = "Optimize PDF file",
             description =
-                    "This endpoint accepts a PDF file and optimizes it based on the provided parameters. Input:PDF Output:PDF Type:SISO")
+                    "This endpoint accepts a PDF file and optimizes it based on the provided"
+                        + " parameters. Input:PDF Output:PDF Type:SISO")
     public ResponseEntity<byte[]> optimizePdf(@ModelAttribute OptimizePdfRequest request)
             throws Exception {
         MultipartFile inputFile = request.getFileInput();
@@ -221,7 +221,8 @@ public class CompressController {
             // Check if optimized file is larger than the original
             if (pdfBytes.length > inputFileSize) {
                 log.warn(
-                        "Optimized file is larger than the original. Returning the original file instead.");
+                        "Optimized file is larger than the original. Returning the original file"
+                            + " instead.");
                 finalFile = tempInputFile;
             }
 

src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineProcessor.java

@@ -118,9 +118,8 @@ public class PipelineProcessor {
                             MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
                             body.add("fileInput", file);
                             for (Entry<String, Object> entry : parameters.entrySet()) {
-                                if (entry.getValue() instanceof List) {
+                                if (entry.getValue() instanceof List<?> entryList) {
-                                    List<?> list = (List<?>) entry.getValue();
+                                    for (Object item : entryList) {
-                                    for (Object item : list) {
                                         body.add(entry.getKey(), item);
                                     }
                                 } else {
@@ -139,7 +138,7 @@ public class PipelineProcessor {
                                 log.info("Skipping file due to filtering {}", operation);
                                 continue;
                             }
-                            if (!response.getStatusCode().equals(HttpStatus.OK)) {
+                            if (!HttpStatus.OK.equals(response.getStatusCode())) {
                                 logPrintStream.println("Error: " + response.getBody());
                                 hasErrors = true;
                                 continue;
@@ -180,9 +179,8 @@ public class PipelineProcessor {
                         body.add("fileInput", file);
                     }
                     for (Entry<String, Object> entry : parameters.entrySet()) {
-                        if (entry.getValue() instanceof List) {
+                        if (entry.getValue() instanceof List<?> entryList) {
-                            List<?> list = (List<?>) entry.getValue();
+                            for (Object item : entryList) {
-                            for (Object item : list) {
                                 body.add(entry.getKey(), item);
                             }
                         } else {
@@ -191,7 +189,7 @@ public class PipelineProcessor {
                     }
                     ResponseEntity<byte[]> response = sendWebRequest(url, body);
                     // Handle the response
-                    if (response.getStatusCode().equals(HttpStatus.OK)) {
+                    if (HttpStatus.OK.equals(response.getStatusCode())) {
                         processOutputFiles(operation, response, newOutputFiles);
                     } else {
                         // Log error if the response status is not OK

src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java

@@ -129,9 +129,9 @@ public class CertSignController {
     @Operation(
             summary = "Sign PDF with a Digital Certificate",
             description =
-                    "This endpoint accepts a PDF file, a digital certificate and related information to sign"
+                    "This endpoint accepts a PDF file, a digital certificate and related"
-                            + " the PDF. It then returns the digitally signed PDF file. Input:PDF Output:PDF"
+                        + " information to sign the PDF. It then returns the digitally signed PDF"
-                            + " Type:SISO")
+                        + " file. Input:PDF Output:PDF Type:SISO")
     public ResponseEntity<byte[]> signPDFWithCert(@ModelAttribute SignPDFWithCertRequest request)
             throws Exception {
         MultipartFile pdf = request.getFileInput();
@@ -201,17 +201,14 @@ public class CertSignController {
             Object pemObject = pemParser.readObject();
             JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider("BC");
             PrivateKeyInfo pkInfo;
-            if (pemObject instanceof PKCS8EncryptedPrivateKeyInfo) {
+            if (pemObject instanceof PKCS8EncryptedPrivateKeyInfo pkcs8EncryptedPrivateKeyInfo) {
                 InputDecryptorProvider decProv =
                         new JceOpenSSLPKCS8DecryptorProviderBuilder().build(password.toCharArray());
-                pkInfo = ((PKCS8EncryptedPrivateKeyInfo) pemObject).decryptPrivateKeyInfo(decProv);
+                pkInfo = pkcs8EncryptedPrivateKeyInfo.decryptPrivateKeyInfo(decProv);
-            } else if (pemObject instanceof PEMEncryptedKeyPair) {
+            } else if (pemObject instanceof PEMEncryptedKeyPair pemEncryptedKeyPair) {
                 PEMDecryptorProvider decProv =
                         new JcePEMDecryptorProviderBuilder().build(password.toCharArray());
-                pkInfo =
+                pkInfo = pemEncryptedKeyPair.decryptKeyPair(decProv).getPrivateKeyInfo();
-                        ((PEMEncryptedKeyPair) pemObject)
-                                .decryptKeyPair(decProv)
-                                .getPrivateKeyInfo();
             } else {
                 pkInfo = ((PEMKeyPair) pemObject).getPrivateKeyInfo();
             }

src/main/java/stirling/software/SPDF/controller/api/security/GetInfoOnPDF.java

@@ -214,10 +214,7 @@ public class GetInfoOnPDF {
             ArrayNode attachmentsArray = objectMapper.createArrayNode();
             for (PDPage page : pdfBoxDoc.getPages()) {
                 for (PDAnnotation annotation : page.getAnnotations()) {
-                    if (annotation instanceof PDAnnotationFileAttachment) {
+                    if (annotation instanceof PDAnnotationFileAttachment fileAttachmentAnnotation) {
-                        PDAnnotationFileAttachment fileAttachmentAnnotation =
-                                (PDAnnotationFileAttachment) annotation;
-
                         ObjectNode attachmentNode = objectMapper.createObjectNode();
                         attachmentNode.put("Name", fileAttachmentAnnotation.getAttachmentName());
                         attachmentNode.put("Description", fileAttachmentAnnotation.getContents());
@@ -437,9 +434,7 @@ public class GetInfoOnPDF {
 
                 for (COSName name : resources.getXObjectNames()) {
                     PDXObject xObject = resources.getXObject(name);
-                    if (xObject instanceof PDImageXObject) {
+                    if (xObject instanceof PDImageXObject image) {
-                        PDImageXObject image = (PDImageXObject) xObject;
-
                         ObjectNode imageNode = objectMapper.createObjectNode();
                         imageNode.put("Width", image.getWidth());
                         imageNode.put("Height", image.getHeight());
@@ -462,10 +457,8 @@ public class GetInfoOnPDF {
                 Set<String> uniqueURIs = new HashSet<>(); // To store unique URIs
 
                 for (PDAnnotation annotation : annotations) {
-                    if (annotation instanceof PDAnnotationLink) {
+                    if (annotation instanceof PDAnnotationLink linkAnnotation) {
-                        PDAnnotationLink linkAnnotation = (PDAnnotationLink) annotation;
+                        if (linkAnnotation.getAction() instanceof PDActionURI uriAction) {
-                        if (linkAnnotation.getAction() instanceof PDActionURI) {
-                            PDActionURI uriAction = (PDActionURI) linkAnnotation.getAction();
                             String uri = uriAction.getURI();
                             uniqueURIs.add(uri); // Add to set to ensure uniqueness
                         }
@@ -541,8 +534,7 @@ public class GetInfoOnPDF {
                 Iterable<COSName> colorSpaceNames = resources.getColorSpaceNames();
                 for (COSName name : colorSpaceNames) {
                     PDColorSpace colorSpace = resources.getColorSpace(name);
-                    if (colorSpace instanceof PDICCBased) {
+                    if (colorSpace instanceof PDICCBased iccBased) {
-                        PDICCBased iccBased = (PDICCBased) colorSpace;
                         PDStream iccData = iccBased.getPDStream();
                         byte[] iccBytes = iccData.toByteArray();
 
@@ -698,12 +690,10 @@ public class GetInfoOnPDF {
         ArrayNode elementsArray = objectMapper.createArrayNode();
         if (nodes != null) {
             for (Object obj : nodes) {
-                if (obj instanceof PDStructureNode) {
+                if (obj instanceof PDStructureNode node) {
-                    PDStructureNode node = (PDStructureNode) obj;
                     ObjectNode elementNode = objectMapper.createObjectNode();
 
-                    if (node instanceof PDStructureElement) {
+                    if (node instanceof PDStructureElement structureElement) {
-                        PDStructureElement structureElement = (PDStructureElement) node;
                         elementNode.put("Type", structureElement.getStructureType());
                         elementNode.put("Content", getContent(structureElement));
 
@@ -724,8 +714,7 @@ public class GetInfoOnPDF {
         StringBuilder contentBuilder = new StringBuilder();
 
         for (Object item : structureElement.getKids()) {
-            if (item instanceof COSString) {
+            if (item instanceof COSString cosString) {
-                COSString cosString = (COSString) item;
                 contentBuilder.append(cosString.getString());
             } else if (item instanceof PDStructureElement) {
                 // For simplicity, we're handling only COSString and PDStructureElement here

src/main/java/stirling/software/SPDF/controller/api/security/SanitizeController.java

@@ -44,7 +44,8 @@ public class SanitizeController {
     @Operation(
             summary = "Sanitize a PDF file",
             description =
-                    "This endpoint processes a PDF file and removes specific elements based on the provided options. Input:PDF Output:PDF Type:SISO")
+                    "This endpoint processes a PDF file and removes specific elements based on the"
+                        + " provided options. Input:PDF Output:PDF Type:SISO")
     public ResponseEntity<byte[]> sanitizePDF(@ModelAttribute SanitizePdfRequest request)
             throws IOException {
         MultipartFile inputFile = request.getFileInput();
@@ -103,8 +104,7 @@ public class SanitizeController {
 
         for (PDPage page : document.getPages()) {
             for (PDAnnotation annotation : page.getAnnotations()) {
-                if (annotation instanceof PDAnnotationWidget) {
+                if (annotation instanceof PDAnnotationWidget widget) {
-                    PDAnnotationWidget widget = (PDAnnotationWidget) annotation;
                     PDAction action = widget.getAction();
                     if (action instanceof PDActionJavaScript) {
                         widget.setAction(null);
@@ -157,12 +157,12 @@ public class SanitizeController {
     private void sanitizeLinks(PDDocument document) throws IOException {
         for (PDPage page : document.getPages()) {
             for (PDAnnotation annotation : page.getAnnotations()) {
-                if (annotation != null && annotation instanceof PDAnnotationLink) {
+                if (annotation != null && annotation instanceof PDAnnotationLink linkAnnotation) {
-                    PDAction action = ((PDAnnotationLink) annotation).getAction();
+                    PDAction action = linkAnnotation.getAction();
                     if (action != null
                             && (action instanceof PDActionLaunch
                                     || action instanceof PDActionURI)) {
-                        ((PDAnnotationLink) annotation).setAction(null);
+                        linkAnnotation.setAction(null);
                     }
                 }
             }

src/main/java/stirling/software/SPDF/controller/web/AccountWebController.java

@@ -123,9 +123,7 @@ public class AccountWebController {
             String saml2AuthenticationPath = "/saml2/authenticate/" + saml2.getRegistrationId();
 
             if (applicationProperties.getEnterpriseEdition().isSsoAutoLogin()) {
-                return "redirect:"
+                return "redirect:" + request.getRequestURL() + saml2AuthenticationPath;
-                        + request.getRequestURL()
-                        + saml2AuthenticationPath;
             } else {
                 providerList.put(saml2AuthenticationPath, samlIdp + " (SAML 2)");
             }
@@ -329,21 +327,21 @@ public class AccountWebController {
         if (authentication == null || !authentication.isAuthenticated()) {
             return "redirect:/";
         }
-        if (authentication != null && authentication.isAuthenticated()) {
+        if (authentication.isAuthenticated()) {
             Object principal = authentication.getPrincipal();
             String username = null;
 
             // Retrieve username and other attributes and add login attributes to the model
-            if (principal instanceof UserDetails userDetails) {
+            if (principal instanceof UserDetails detailsUser) {
-                username = userDetails.getUsername();
+                username = detailsUser.getUsername();
                 model.addAttribute("oAuth2Login", false);
             }
-            if (principal instanceof OAuth2User userDetails) {
+            if (principal instanceof OAuth2User oAuth2User) {
-                username = userDetails.getName();
+                username = oAuth2User.getName();
                 model.addAttribute("oAuth2Login", true);
             }
-            if (principal instanceof CustomSaml2AuthenticatedPrincipal userDetails) {
+            if (principal instanceof CustomSaml2AuthenticatedPrincipal saml2User) {
-                username = userDetails.name();
+                username = saml2User.name();
                 model.addAttribute("saml2Login", true);
             }
             if (username != null) {
@@ -395,10 +393,10 @@ public class AccountWebController {
         if (authentication == null || !authentication.isAuthenticated()) {
             return "redirect:/";
         }
-        if (authentication != null && authentication.isAuthenticated()) {
+        if (authentication.isAuthenticated()) {
             Object principal = authentication.getPrincipal();
-            if (principal instanceof UserDetails userDetails) {
+            if (principal instanceof UserDetails detailsUser) {
-                String username = userDetails.getUsername();
+                String username = detailsUser.getUsername();
                 // Fetch user details from the database
                 Optional<User> user = userRepository.findByUsernameIgnoreCase(username);
                 if (user.isEmpty()) {

src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java

@@ -230,7 +230,11 @@ public class GeneralWebController {
         // Extract font names from external directory
         fontNames.addAll(
                 getFontNamesFromLocation(
-                        "file:" + InstallationPathConfig.getStaticPath() + "fonts/*"));
+                        "file:"
+                                + InstallationPathConfig.getStaticPath()
+                                + "fonts"
+                                + File.separator
+                                + "*"));
         return fontNames;
     }
 

src/main/java/stirling/software/SPDF/model/ApplicationProperties.java

@@ -284,10 +284,14 @@ public class ApplicationProperties {
         private boolean customHTMLFiles;
         private String tessdataDir;
         private Boolean enableAlphaFunctionality;
-        private String enableAnalytics;
+        private Boolean enableAnalytics;
         private Datasource datasource;
         private Boolean disableSanitize;
         private CustomPaths customPaths = new CustomPaths();
+
+        public boolean isAnalyticsEnabled() {
+            return this.getEnableAnalytics() != null && this.getEnableAnalytics();
+        }
     }
 
     @Data

src/main/java/stirling/software/SPDF/model/provider/GitHubProvider.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 
 import lombok.NoArgsConstructor;
+
 import stirling.software.SPDF.model.UsernameAttribute;
 
 @NoArgsConstructor

src/main/java/stirling/software/SPDF/model/provider/GoogleProvider.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 
 import lombok.NoArgsConstructor;
+
 import stirling.software.SPDF.model.UsernameAttribute;
 
 @NoArgsConstructor

src/main/java/stirling/software/SPDF/model/provider/KeycloakProvider.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 
 import lombok.NoArgsConstructor;
+
 import stirling.software.SPDF.model.UsernameAttribute;
 
 @NoArgsConstructor

src/main/java/stirling/software/SPDF/service/CertificateValidationService.java

@@ -84,8 +84,8 @@ public class CertificateValidationService {
             Enumeration<String> aliases = trustStore.aliases();
             while (aliases.hasMoreElements()) {
                 Object trustCert = trustStore.getCertificate(aliases.nextElement());
-                if (trustCert instanceof X509Certificate) {
+                if (trustCert instanceof X509Certificate x509Cert) {
-                    anchors.add(new TrustAnchor((X509Certificate) trustCert, null));
+                    anchors.add(new TrustAnchor(x509Cert, null));
                 }
             }
 

src/main/java/stirling/software/SPDF/service/PostHogService.java

@@ -49,7 +49,7 @@ public class PostHogService {
     }
 
     private void captureSystemInfo() {
-        if (!Boolean.parseBoolean(applicationProperties.getSystem().getEnableAnalytics())) {
+        if (!applicationProperties.getSystem().isAnalyticsEnabled()) {
             return;
         }
         try {
@@ -60,7 +60,7 @@ public class PostHogService {
     }
 
     public void captureEvent(String eventName, Map<String, Object> properties) {
-        if (!Boolean.parseBoolean(applicationProperties.getSystem().getEnableAnalytics())) {
+        if (!applicationProperties.getSystem().isAnalyticsEnabled()) {
             return;
         }
         postHog.capture(uniqueId, eventName, properties);
@@ -315,7 +315,7 @@ public class PostHogService {
         addIfNotEmpty(
                 properties,
                 "system_enableAnalytics",
-                applicationProperties.getSystem().getEnableAnalytics());
+                applicationProperties.getSystem().isAnalyticsEnabled());
 
         // Capture UI properties
         addIfNotEmpty(properties, "ui_appName", applicationProperties.getUi().getAppName());

src/main/java/stirling/software/SPDF/utils/FileMonitor.java

@@ -49,7 +49,8 @@ public class FileMonitor {
         this.pathFilter = pathFilter;
         this.readyForProcessingFiles = ConcurrentHashMap.newKeySet();
         this.watchService = FileSystems.getDefault().newWatchService();
-        this.rootDir = Path.of(runtimePathConfig.getPipelineWatchedFoldersPath()).toAbsolutePath();
+        log.info("Monitoring directory: {}", runtimePathConfig.getPipelineWatchedFoldersPath());
+        this.rootDir = Path.of(runtimePathConfig.getPipelineWatchedFoldersPath());
     }
 
     private boolean shouldNotProcess(Path path) {

src/main/java/stirling/software/SPDF/utils/FileToPdf.java

@@ -169,7 +169,7 @@ public class FileToPdf {
             }
         }
 
-        // search for the main HTML file.
+        // Search for the main HTML file.
         try (Stream<Path> walk = Files.walk(tempDirectory)) {
             List<Path> htmlFiles =
                     walk.filter(file -> file.toString().endsWith(".html"))
@@ -190,46 +190,20 @@ public class FileToPdf {
         }
     }
 
-    public static byte[] convertBookTypeToPdf(byte[] bytes, String originalFilename)
-            throws IOException, InterruptedException {
-        if (originalFilename == null || originalFilename.lastIndexOf('.') == -1) {
-            throw new IllegalArgumentException("Invalid original filename.");
-        }
-
-        String fileExtension = originalFilename.substring(originalFilename.lastIndexOf('.'));
-        List<String> command = new ArrayList<>();
-        Path tempOutputFile = Files.createTempFile("output_", ".pdf");
-        Path tempInputFile = null;
-
-        try {
-            // Create temp file with appropriate extension
-            tempInputFile = Files.createTempFile("input_", fileExtension);
-            Files.write(tempInputFile, bytes);
-
-            command.add("ebook-convert");
-            command.add(tempInputFile.toString());
-            command.add(tempOutputFile.toString());
-            ProcessExecutorResult returnCode =
-                    ProcessExecutor.getInstance(ProcessExecutor.Processes.CALIBRE)
-                            .runCommandWithOutputHandling(command);
-
-            return Files.readAllBytes(tempOutputFile);
-        } finally {
-            // Clean up temporary files
-            if (tempInputFile != null) {
-                Files.deleteIfExists(tempInputFile);
-            }
-            Files.deleteIfExists(tempOutputFile);
-        }
-    }
-
     static String sanitizeZipFilename(String entryName) {
         if (entryName == null || entryName.trim().isEmpty()) {
-            return entryName;
+            return "";
         }
+        // Remove any drive letters (e.g., "C:\") and leading forward/backslashes
+        entryName = entryName.replaceAll("^[a-zA-Z]:[\\\\/]+", "");
+        entryName = entryName.replaceAll("^[\\\\/]+", "");
+
+        // Recursively remove path traversal sequences
         while (entryName.contains("../") || entryName.contains("..\\")) {
             entryName = entryName.replace("../", "").replace("..\\", "");
         }
+        // Normalize all backslashes to forward slashes
+        entryName = entryName.replaceAll("\\\\", "/");
         return entryName;
     }
 }

src/main/java/stirling/software/SPDF/utils/GeneralUtils.java

@@ -9,15 +9,10 @@ import java.nio.charset.StandardCharsets;
 import java.nio.file.*;
 import java.nio.file.attribute.BasicFileAttributes;
 import java.security.MessageDigest;
-import java.util.ArrayDeque;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collections;
-import java.util.Deque;
 import java.util.Enumeration;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 import java.util.UUID;
 
 import org.springframework.web.multipart.MultipartFile;
@@ -30,6 +25,7 @@ import io.github.pixee.security.Urls;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.config.InstallationPathConfig;
+import stirling.software.SPDF.config.YamlHelper;
 
 @Slf4j
 public class GeneralUtils {
@@ -338,218 +334,16 @@ public class GeneralUtils {
         }
     }
 
-    public static void saveKeyToConfig(String id, String key) throws IOException {
-        saveKeyToConfig(id, key, true);
-    }
-
-    public static void saveKeyToConfig(String id, boolean key) throws IOException {
-        saveKeyToConfig(id, key, true);
-    }
-
-    public static void saveKeyToConfig(String id, String key, boolean autoGenerated)
-            throws IOException {
-        doSaveKeyToConfig(id, (key == null ? "" : key), autoGenerated);
-    }
-
-    public static void saveKeyToConfig(String id, boolean key, boolean autoGenerated)
-            throws IOException {
-        doSaveKeyToConfig(id, String.valueOf(key), autoGenerated);
-    }
-
     /*------------------------------------------------------------------------*
      *                  Internal Implementation Details                       *
      *------------------------------------------------------------------------*/
 
-    /**
+    public static void saveKeyToSettings(String key, Object newValue) throws IOException {
-     * Actually performs the line-based update for the given path (e.g. "security.csrfDisabled") to
+        String[] keyArray = key.split("\\.");
-     * a new string value (e.g. "true"), possibly marking it as auto-generated.
-     */
-    private static void doSaveKeyToConfig(String fullPath, String newValue, boolean autoGenerated)
-            throws IOException {
-        // 1) Load the file (settings.yml)
         Path settingsPath = Paths.get(InstallationPathConfig.getSettingsPath());
-        if (!Files.exists(settingsPath)) {
+        YamlHelper settingsYaml = new YamlHelper(settingsPath);
-            log.warn("Settings file not found at {}, creating a new empty file...", settingsPath);
+        settingsYaml.updateValue(Arrays.asList(keyArray), newValue);
-            Files.createDirectories(settingsPath.getParent());
+        settingsYaml.saveOverride(settingsPath);
-            Files.createFile(settingsPath);
-        }
-        List<String> lines = Files.readAllLines(settingsPath);
-
-        // 2) Build a map of "nestedKeyPath -> lineIndex" by parsing indentation
-        //    Also track each line's indentation so we can preserve it when rewriting.
-        Map<String, LineInfo> pathToLine = parseNestedYamlKeys(lines);
-
-        // 3) If the path is found, rewrite its line. Else, append at the bottom (no indentation).
-        boolean changed = false;
-        if (pathToLine.containsKey(fullPath)) {
-            // Rewrite existing line
-            LineInfo info = pathToLine.get(fullPath);
-            String oldLine = lines.get(info.lineIndex);
-            String newLine =
-                    rewriteLine(oldLine, info.indentSpaces, fullPath, newValue, autoGenerated);
-            if (!newLine.equals(oldLine)) {
-                lines.set(info.lineIndex, newLine);
-                changed = true;
-            }
-        } else {
-            // Append a new line at the bottom, with zero indentation
-            String appended = fullPath + ": " + newValue;
-            if (autoGenerated) {
-                appended += " # Automatically Generated Settings (Do Not Edit Directly)";
-            }
-            lines.add(appended);
-            changed = true;
-        }
-
-        // 4) If changed, write back to file
-        if (changed) {
-            Files.write(settingsPath, lines);
-            log.info(
-                    "Updated '{}' to '{}' (autoGenerated={}) in {}",
-                    fullPath,
-                    newValue,
-                    autoGenerated,
-                    settingsPath);
-        } else {
-            log.info("No changes for '{}' (already set to '{}').", fullPath, newValue);
-        }
-    }
-
-    /** A small record-like class that holds: - lineIndex - indentSpaces */
-    private static class LineInfo {
-        int lineIndex;
-        int indentSpaces;
-
-        public LineInfo(int lineIndex, int indentSpaces) {
-            this.lineIndex = lineIndex;
-            this.indentSpaces = indentSpaces;
-        }
-    }
-
-    /**
-     * Parse the YAML lines to build a map: "full.nested.key" -> (lineIndex, indentSpaces). We do a
-     * naive indentation-based path stacking: - 2 spaces = 1 indent level - lines that start with
-     * fewer or equal indentation pop the stack - lines that look like "key:" or "key: value" cause
-     * a push
-     */
-    private static Map<String, LineInfo> parseNestedYamlKeys(List<String> lines) {
-        Map<String, LineInfo> result = new HashMap<>();
-
-        // We'll maintain a stack of (keyName, indentLevel).
-        // Each line that looks like "myKey:" or "myKey: value" is a new "child" of the top of the
-        // stack if indent is deeper.
-        Deque<String> pathStack = new ArrayDeque<>();
-        Deque<Integer> indentStack = new ArrayDeque<>();
-        indentStack.push(-1); // sentinel
-
-        for (int i = 0; i < lines.size(); i++) {
-            String line = lines.get(i);
-            String trimmed = line.trim();
-
-            // skip blank lines, comment lines, or list items
-            if (trimmed.isEmpty() || trimmed.startsWith("#") || trimmed.startsWith("-")) {
-                continue;
-            }
-            // check if there's a colon
-            int colonIdx = trimmed.indexOf(':');
-            if (colonIdx <= 0) { // must have at least one char before ':'
-                continue;
-            }
-            // parse out key
-            String keyPart = trimmed.substring(0, colonIdx).trim();
-            if (keyPart.isEmpty()) {
-                continue;
-            }
-
-            // count leading spaces for indentation
-            int leadingSpaces = countLeadingSpaces(line);
-            int indentLevel = leadingSpaces / 2; // assume 2 spaces per level
-
-            // pop from stack until we get to a shallower indentation
-            while (indentStack.peek() != null && indentStack.peek() >= indentLevel) {
-                indentStack.pop();
-                pathStack.pop();
-            }
-
-            // push the new key
-            pathStack.push(keyPart);
-            indentStack.push(indentLevel);
-
-            // build the full path
-            String[] arr = pathStack.toArray(new String[0]);
-            List<String> reversed = Arrays.asList(arr);
-            Collections.reverse(reversed);
-            String fullPath = String.join(".", reversed);
-
-            // store line info
-            result.put(fullPath, new LineInfo(i, leadingSpaces));
-        }
-
-        return result;
-    }
-
-    /**
-     * Rewrite a single line to set a new value, preserving indentation and (optionally) the
-     * existing or auto-generated inline comment.
-     *
-     * <p>For example, oldLine might be: " csrfDisabled: false # set to 'true' to disable CSRF
-     * protection" newValue = "true" autoGenerated = false
-     *
-     * <p>We'll produce something like: " csrfDisabled: true # set to 'true' to disable CSRF
-     * protection"
-     */
-    private static String rewriteLine(
-            String oldLine, int indentSpaces, String path, String newValue, boolean autoGenerated) {
-        // We'll keep the exact leading indentation (indentSpaces).
-        // Then "key: newValue". We'll try to preserve any existing inline comment unless
-        // autoGenerated is true.
-
-        // 1) Extract leading spaces from the old line (just in case they differ from indentSpaces).
-        int actualLeadingSpaces = countLeadingSpaces(oldLine);
-        String leading = oldLine.substring(0, actualLeadingSpaces);
-
-        // 2) Remove leading spaces from the rest
-        String trimmed = oldLine.substring(actualLeadingSpaces);
-
-        // 3) Check for existing comment
-        int hashIndex = trimmed.indexOf('#');
-        String lineWithoutComment =
-                (hashIndex >= 0) ? trimmed.substring(0, hashIndex).trim() : trimmed.trim();
-        String oldComment = (hashIndex >= 0) ? trimmed.substring(hashIndex).trim() : "";
-
-        // 4) Rebuild "key: newValue"
-        // The "key" here is everything before ':' in lineWithoutComment
-        int colonIdx = lineWithoutComment.indexOf(':');
-        String existingKey =
-                (colonIdx >= 0)
-                        ? lineWithoutComment.substring(0, colonIdx).trim()
-                        : path; // fallback if line is malformed
-
-        StringBuilder sb = new StringBuilder();
-        sb.append(leading); // restore original leading spaces
-
-        // "key: newValue"
-        sb.append(existingKey).append(": ").append(newValue);
-
-        // 5) If autoGenerated, add/replace comment
-        if (autoGenerated) {
-            sb.append(" # Automatically Generated Settings (Do Not Edit Directly)");
-        } else {
-            // preserve the old comment if it exists
-            if (!oldComment.isEmpty()) {
-                sb.append(" ").append(oldComment);
-            }
-        }
-        return sb.toString();
-    }
-
-    private static int countLeadingSpaces(String line) {
-        int count = 0;
-        for (char c : line.toCharArray()) {
-            if (c == ' ') count++;
-            else break;
-        }
-        return count;
     }
 
     public static String generateMachineFingerprint() {

src/main/java/stirling/software/SPDF/utils/ImageProcessingUtils.java

@@ -49,10 +49,10 @@ public class ImageProcessingUtils {
 
     public static byte[] getImageData(BufferedImage image) {
         DataBuffer dataBuffer = image.getRaster().getDataBuffer();
-        if (dataBuffer instanceof DataBufferByte) {
+        if (dataBuffer instanceof DataBufferByte dataBufferByte) {
-            return ((DataBufferByte) dataBuffer).getData();
+            return dataBufferByte.getData();
-        } else if (dataBuffer instanceof DataBufferInt) {
+        } else if (dataBuffer instanceof DataBufferInt dataBufferInt) {
-            int[] intData = ((DataBufferInt) dataBuffer).getData();
+            int[] intData = dataBufferInt.getData();
             ByteBuffer byteBuffer = ByteBuffer.allocate(intData.length * 4);
             byteBuffer.asIntBuffer().put(intData);
             return byteBuffer.array();

src/main/java/stirling/software/SPDF/utils/ProcessExecutor.java

@@ -1,6 +1,10 @@
 package stirling.software.SPDF.utils;
 
-import java.io.*;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.InterruptedIOException;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
@@ -222,7 +226,7 @@ public class ProcessExecutor {
             boolean isQpdf =
                     command != null && !command.isEmpty() && command.get(0).contains("qpdf");
 
-            if (outputLines.size() > 0) {
+            if (!outputLines.isEmpty()) {
                 String outputMessage = String.join("\n", outputLines);
                 messages += outputMessage;
                 if (!liveUpdates) {
@@ -230,7 +234,7 @@ public class ProcessExecutor {
                 }
             }
 
-            if (errorLines.size() > 0) {
+            if (!errorLines.isEmpty()) {
                 String errorMessage = String.join("\n", errorLines);
                 messages += errorMessage;
                 if (!liveUpdates) {

src/main/resources/messages_ar_AR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=تحويل إلى PDF
 compress.title=ضغط
 compress.header=ضغط ملف PDF
 compress.credit=تستخدم هذه الخدمة qpdf لضغط / تحسين PDF.
+compress.grayscale.label=تطبيق التدرج الرمادي للضغط
 compress.selectText.1=الوضع اليدوي - من 1 إلى 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=مستوى التحسين:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=تطبيق التدرج الرمادي للضغط

src/main/resources/messages_az_AZ.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDF-ə Çevir
 compress.title=Sıxışdır
 compress.header=PDF-i Sıxışdır
 compress.credit=Bu servis PDF sıxışdırılması/Optimizasiyası üçün Ghostscript istifadə edir.
+compress.grayscale.label=Sıxma üçün Boz Rəng Tətbiq Edin
 compress.selectText.1=Manual Mod - 1-dən 5-ə
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimizasiya səviyyəsi:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Sıxma üçün Boz Rəng Tətbiq Edin

src/main/resources/messages_bg_BG.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Преобразуване към PDF
 compress.title=Компресиране
 compress.header=Компресиране на PDF
 compress.credit=Тази услуга използва qpdf за PDF компресиране/оптимизиране.
+compress.grayscale.label=Приложи сива скала за компресиране
 compress.selectText.1=Ръчен режим - от 1 до 5
 compress.selectText.1.1=При нива на оптимизация от 6 до 9, в допълнение към общото компресиране на PDF, резолюцията на изображението се намалява, за да се намали допълнително размерът на файла. По-високите нива водят до по-силна компресия на изображенията (до 50% от оригиналния размер), като се постига по-голямо намаляване на размера, но с потенциална загуба на качество на изображенията.
 compress.selectText.2=Ниво на оптимизация:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Версия
 validateSignature.cert.keyUsage=Предназначение на ключа за използване
 validateSignature.cert.selfSigned=Самостоятелно подписан
 validateSignature.cert.bits=битове
-compress.grayscale.label=Приложи сива скала за компресиране

src/main/resources/messages_ca_CA.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Converteix a PDF
 compress.title=Comprimir
 compress.header=Comprimir PDF
 compress.credit=Aquest servei utilitza qpdf per a la compressió/optimització de PDF.
+compress.grayscale.label=Aplicar escala de grisos per a la compressió
 compress.selectText.1=Mode manual: de l'1 al 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Nivell d'optimització:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Aplicar escala de grisos per a la compressió

src/main/resources/messages_cs_CZ.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Převést na PDF
 compress.title=Komprimovat
 compress.header=Komprimovat PDF
 compress.credit=Tato služba používá qpdf pro kompresi/optimalizaci PDF.
+compress.grayscale.label=Použít stupnici šedi pro kompresi
 compress.selectText.1=Ruční režim - Od 1 do 5
 compress.selectText.1.1=V úrovních optimalizace 6 až 9 je kromě obecné komprese PDF sníženo rozlišení obrázků pro další zmenšení velikosti souboru. Vyšší úrovně vedou k silnější kompresi obrázků (až na 50 % původní velikosti), čímž dosahují většího zmenšení velikosti, ale s potenciální ztrátou kvality obrázků.
 compress.selectText.2=Úroveň optimalizace:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Verze
 validateSignature.cert.keyUsage=Použití klíče
 validateSignature.cert.selfSigned=Podepsaný sám sebou
 validateSignature.cert.bits=bitů
-compress.grayscale.label=Použít stupnici šedi pro kompresi

src/main/resources/messages_da_DK.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konvertér til PDF
 compress.title=Komprimer
 compress.header=Komprimer PDF
 compress.credit=Denne tjeneste bruger qpdf til PDF Komprimering/Optimering.
+compress.grayscale.label=Anvend gråskala til komprimering
 compress.selectText.1=Manuel Tilstand - Fra 1 til 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimeringsniveau:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Anvend gråskala til komprimering

src/main/resources/messages_de_DE.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=In PDF konvertieren
 compress.title=Komprimieren
 compress.header=PDF komprimieren
 compress.credit=Dieser Dienst verwendet qpdf für die PDF-Komprimierung/-Optimierung.
+compress.grayscale.label=Graustufen für Komprimierung anwenden
 compress.selectText.1=Manueller Modus – Von 1 bis 5
 compress.selectText.1.1=In den Optimierungsstufen 6 bis 9 wird zusätzlich zur allgemeinen PDF-Komprimierung die Bildauflösung reduziert, um die Dateigröße weiter zu verringern. Höhere Stufen führen zu einer stärkeren Bildkomprimierung (bis zu 50 % der Originalgröße), wodurch eine stärkere Größenreduzierung erreicht wird, die jedoch mit einem möglichen Qualitätsverlust der Bilder einhergeht.
 compress.selectText.2=Optimierungsstufe:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Schlüsselverwendung
 validateSignature.cert.selfSigned=Selbstsigniert
 validateSignature.cert.bits=bits
-compress.grayscale.label=Graustufen für Komprimierung anwenden

src/main/resources/messages_el_GR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Μετατροπή σε PDF
 compress.title=Συμπίεση
 compress.header=Συμπίεση PDF
 compress.credit=Αυτή η υπηρεσία χρησιμοποιεί qpdf για συμπίεση/βελτιστοποίηση PDF.
+compress.grayscale.label=Εφαρμογή κλίμακας του γκρι για συμπίεση
 compress.selectText.1=Χειροκίνητη λειτουργία - Από 1 έως 5
 compress.selectText.1.1=Στα επίπεδα βελτιστοποίησης 6 έως 9, εκτός από τη γενική συμπίεση PDF, η ανάλυση εικόνας μειώνεται για περαιτέρω μείωση του μεγέθους αρχείου. Υψηλότερα επίπεδα οδηγούν σε ισχυρότερη συμπίεση εικόνας (έως και 50% του αρχικού μεγέθους), επιτυγχάνοντας μεγαλύτερη μείωση μεγέθους αλλά με πιθανή απώλεια ποιότητας στις εικόνες.
 compress.selectText.2=Επίπεδο βελτιστοποίησης:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Έκδοση
 validateSignature.cert.keyUsage=Χρήση κλειδιού
 validateSignature.cert.selfSigned=Αυτο-υπογεγραμμένο
 validateSignature.cert.bits=bits
-compress.grayscale.label=Εφαρμογή κλίμακας του γκρι για συμπίεση

src/main/resources/messages_en_GB.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Convert to PDF
 compress.title=Compress
 compress.header=Compress PDF
 compress.credit=This service uses qpdf for PDF Compress/Optimisation.
+compress.grayscale.label=Apply Grayscale for Compression
 compress.selectText.1=Manual Mode - From 1 to 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimisation level:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Apply Grayscale for Compression

src/main/resources/messages_en_US.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Convert to PDF
 compress.title=Compress
 compress.header=Compress PDF
 compress.credit=This service uses qpdf for PDF Compress/Optimisation.
+compress.grayscale.label=Apply Grayscale for Compression
 compress.selectText.1=Manual Mode - From 1 to 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimization level:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Apply Grayscale for Compression

src/main/resources/messages_es_ES.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Convertir a PDF
 compress.title=Comprimir
 compress.header=Comprimir PDF
 compress.credit=Este servicio utiliza qpdf para compresión/optimización de PDF
+compress.grayscale.label=Aplicar escala de grises para compresión
 compress.selectText.1=Modo manual - De 1 a 5
 compress.selectText.1.1=En los niveles de optimización 6 a 9, además de la compresión general de PDF, se reduce la resolución de la imagen para reducir aún más el tamaño del archivo. Los niveles más altos dan como resultado una mayor compresión de la imagen (hasta el 50 % del tamaño original), lo que permite lograr una mayor reducción del tamaño, pero con una posible pérdida de calidad en las imágenes.
 compress.selectText.2=Nivel de optimización:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Versión
 validateSignature.cert.keyUsage=Uso de la llave
 validateSignature.cert.selfSigned=Autofirmado
 validateSignature.cert.bits=bits
-compress.grayscale.label=Aplicar escala de grises para compresión

src/main/resources/messages_eu_ES.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDF bihurtu
 compress.title=Konprimatu
 compress.header=PDFa konprimatu
 compress.credit=Zerbitzu honek qpdf erabiltzen du PDFak komprimatzeko/optimizatzeko
+compress.grayscale.label=Aplikatu grisezko eskala konpresiorako
 compress.selectText.1=Eskuz 1etik 5ra
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimizazio maila:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Aplikatu grisezko eskala konpresiorako

src/main/resources/messages_fa_IR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=تبدیل به PDF
 compress.title=فشرده‌سازی
 compress.header=فشرده‌سازی PDF
 compress.credit=این سرویس از qpdf برای فشرده‌سازی / بهینه‌سازی PDF استفاده می‌کند.
+compress.grayscale.label=اعمال مقیاس خاکستری برای فشرده‌سازی
 compress.selectText.1=حالت دستی - از 1 تا 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=سطح بهینه‌سازی:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=نسخه
 validateSignature.cert.keyUsage=کاربرد کلید
 validateSignature.cert.selfSigned=با امضای خود
 validateSignature.cert.bits=بیت‌ها
-compress.grayscale.label=اعمال مقیاس خاکستری برای فشرده‌سازی

src/main/resources/messages_fr_FR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Convertir
 compress.title=Compresser un PDF
 compress.header=Compresser un PDF (lorsque c'est possible!)
 compress.credit=Ce service utilise qpdf pour la compression et l'optimisation des PDF.
+compress.grayscale.label=Appliquer l'échelle de gris pour la compression
 compress.selectText.1=Mode manuel – de 1 à 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Niveau d'optimisation
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Usage de la clé
 validateSignature.cert.selfSigned=Auto-signé
 validateSignature.cert.bits=bits
-compress.grayscale.label=Appliquer l'échelle de gris pour la compression

src/main/resources/messages_ga_IE.properties

@@ -572,8 +572,8 @@ login.invalid=Ainm úsáideora nó pasfhocal neamhbhailí.
 login.locked=Tá do chuntas glasáilte.
 login.signinTitle=Sínigh isteach le do thoil
 login.ssoSignIn=Logáil isteach trí Chlárú Aonair
-login.oauth2AutoCreateDisabled=OAUTH2 Uath-Chruthaigh Úsáideoir faoi Mhíchumas
+login.oAuth2AutoCreateDisabled=OAUTH2 Uath-Chruthaigh Úsáideoir faoi Mhíchumas
-login.oauth2AdminBlockedUser=Tá bac faoi láthair ar chlárú nó logáil isteach úsáideoirí neamhchláraithe. Déan teagmháil leis an riarthóir le do thoil.
+login.oAuth2AdminBlockedUser=Tá bac faoi láthair ar chlárú nó logáil isteach úsáideoirí neamhchláraithe. Déan teagmháil leis an riarthóir le do thoil.
 login.oauth2RequestNotFound=Níor aimsíodh iarratas údaraithe
 login.oauth2InvalidUserInfoResponse=Freagra Neamhbhailí Faisnéise Úsáideora
 login.oauth2invalidRequest=Iarratas Neamhbhailí
@@ -951,6 +951,7 @@ fileToPDF.submit=Tiontaigh go PDF
 compress.title=Comhbhrúigh
 compress.header=Comhbhrúigh PDF
 compress.credit=Úsáideann an tseirbhís seo qpdf le haghaidh Comhbhrú/Optimization PDF.
+compress.grayscale.label=Cuir Scála Liath i bhFeidhm le Comhbhrú
 compress.selectText.1=Mód Láimhe - Ó 1 go 5
 compress.selectText.1.1=I leibhéil optamaithe 6 go 9, chomh maith le comhbhrú ginearálta PDF, déantar réiteach íomhá a laghdú de réir scála chun méid comhaid a laghdú tuilleadh. Mar thoradh ar leibhéil níos airde tá comhbhrú íomhá níos láidre (suas le 50% den mhéid bunaidh), ag baint amach laghdú méide níos mó ach le caillteanas cáilíochta féideartha in íomhánna.
 compress.selectText.2=Leibhéal optamaithe:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Leagan
 validateSignature.cert.keyUsage=Úsáid Eochrach
 validateSignature.cert.selfSigned=Féin-Sínithe
 validateSignature.cert.bits=giotáin
-compress.grayscale.label=Cuir Scála Liath i bhFeidhm le Comhbhrú

src/main/resources/messages_hi_IN.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDF में बदलें
 compress.title=कम्प्रेस
 compress.header=PDF कम्प्रेस करें
 compress.credit=यह सेवा PDF कम्प्रेस/अनुकूलन के लिए qpdf का उपयोग करती है।
+compress.grayscale.label=संपीड़न के लिए ग्रेस्केल लागू करें
 compress.selectText.1=मैनुअल मोड - स्तर 1 से 4
 compress.selectText.1.1=अनुकूलन स्तर 6 से 9 में, सामान्य PDF कम्प्रेसन के अतिरिक्त, फ़ाइल आकार को और कम करने के लिए छवि रेज़ोल्यूशन को कम किया जाता है। उच्च स्तर पर छवियों का अधिक कम्प्रेसन होता है (मूल आकार का 50% तक), जिससे आकार में अधिक कमी आती है लेकिन छवियों की गुणवत्ता प्रभावित हो सकती है।
 compress.selectText.2=अनुकूलन स्तर:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=संस्करण
 validateSignature.cert.keyUsage=कुंजी उपयोग
 validateSignature.cert.selfSigned=स्व-हस्ताक्षरित
 validateSignature.cert.bits=बिट्स
-compress.grayscale.label=संपीड़न के लिए ग्रेस्केल लागू करें

src/main/resources/messages_hr_HR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Pretvori u PDF
 compress.title=Komprimirajte
 compress.header=Komprimirajte PDF
 compress.credit=Ova usluga koristi qpdf za komprimiranje / optimizaciju PDF-a.
+compress.grayscale.label=Primijeni sivinu za kompresiju
 compress.selectText.1=Ručni režim - Od 1 do 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Nivo optimizacije:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Primijeni sivinu za kompresiju

src/main/resources/messages_hu_HU.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konvertálás PDF-be
 compress.title=Tömörítés
 compress.header=PDF tömörítése
 compress.credit=Ez a szolgáltatás a qpdf használatával végzi a PDF tömörítését/optimalizálását.
+compress.grayscale.label=Szürkeárnyalatok alkalmazása tömörítéshez
 compress.selectText.1=Kézi mód - 1-től 5-ig
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimalizálási szint:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Verzió
 validateSignature.cert.keyUsage=Kulcshasználat
 validateSignature.cert.selfSigned=Önaláírt
 validateSignature.cert.bits=bit
-compress.grayscale.label=Szürkeárnyalatok alkalmazása tömörítéshez

src/main/resources/messages_id_ID.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konversi ke PDF
 compress.title=Kompres
 compress.header=Kompres PDF
 compress.credit=Layanan ini menggunakan qpdf untuk Kompresi/Optimalisasi PDF.
+compress.grayscale.label=Terapkan Skala Abu-Abu untuk Kompresi
 compress.selectText.1=Mode Manual - Dari 1 hingga 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Tingkat Optimalisasi:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Terapkan Skala Abu-Abu untuk Kompresi

src/main/resources/messages_it_IT.properties

@@ -262,7 +262,7 @@ home.desc=La tua pagina auto-gestita per modificare qualsiasi PDF.
 home.searchBar=Cerca funzionalità...
 
 
-home.viewPdf.title=View/Edit PDF
+home.viewPdf.title=Visualizza/Modifica PDF
 home.viewPdf.desc=Visualizza, annota, aggiungi testo o immagini
 viewPdf.tags=visualizzare,leggere,annotare,testo,immagine
 
@@ -951,6 +951,7 @@ fileToPDF.submit=Converti in PDF
 compress.title=Comprimi
 compress.header=Comprimi PDF
 compress.credit=Questo servizio utilizza qpdf per la compressione/ottimizzazione dei PDF.
+compress.grayscale.label=Applica scala di grigio per la compressione
 compress.selectText.1=Modalità manuale - Da 1 a 5
 compress.selectText.1.1=Nei livelli di ottimizzazione da 6 a 9, oltre alla compressione PDF generale, la risoluzione dell'immagine viene ridotta per ridurre ulteriormente le dimensioni del file. Livelli più alti comportano una compressione dell'immagine più forte (fino al 50% delle dimensioni originali), ottenendo una maggiore riduzione delle dimensioni ma con una potenziale perdita di qualità nelle immagini.
 compress.selectText.2=Livello di ottimizzazione:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Versione
 validateSignature.cert.keyUsage=Utilizzo della chiave
 validateSignature.cert.selfSigned=Autofirmato
 validateSignature.cert.bits=bit
-compress.grayscale.label=Applica scala di grigio per la compressione

src/main/resources/messages_ja_JP.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDFを変換
 compress.title=圧縮
 compress.header=PDFを圧縮
 compress.credit=本サービスはPDFの圧縮/最適化にqpdfを使用しています。
+compress.grayscale.label=圧縮にグレースケールを適用する
 compress.selectText.1=手動モード - 1から9
 compress.selectText.1.1=最適化レベル6～9では、一般的なPDF圧縮に加えて画像解像度が縮小され、ファイルサイズがさらに縮小されます。レベルが高くなると、画像圧縮が強化され (元のサイズの最大 50%)、サイズはさらに縮小されますが、画像の品質が低下する可能性があります。
 compress.selectText.2=品質レベル:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=バージョン
 validateSignature.cert.keyUsage=キーの使用法
 validateSignature.cert.selfSigned=自己署名
 validateSignature.cert.bits=ビット
-compress.grayscale.label=圧縮にグレースケールを適用する

src/main/resources/messages_ko_KR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDF로 변환
 compress.title=압축
 compress.header=PDF 압축
 compress.credit=이 서비스는 PDF 압축/최적화를 위해 qpdf를 사용합니다.
+compress.grayscale.label=압축을 위해 그레이스케일 적용
 compress.selectText.1=수동 모드 - 1에서 5
 compress.selectText.1.1=최적화 레벨 6에서 9에서는 일반적인 PDF 압축 외에도 이미지 해상도가 낮아져 파일 크기가 더욱 감소합니다. 높은 레벨은 더 강력한 이미지 압축(원본 크기의 최대 50%)을 초래하여 더 큰 크기 감소를 달성하지만 이미지 품질이 저하될 수 있습니다.
 compress.selectText.2=최적화 레벨:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=버전
 validateSignature.cert.keyUsage=키 용도
 validateSignature.cert.selfSigned=자체 서명
 validateSignature.cert.bits=비트
-compress.grayscale.label=압축을 위해 그레이스케일 적용

src/main/resources/messages_nl_NL.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Omzetten naar PDF
 compress.title=Comprimeren
 compress.header=PDF comprimeren
 compress.credit=Deze functie gebruikt qpdf voor PDF Compressie/Optimalisatie.
+compress.grayscale.label=Grijsschaal toepassen voor compressie
 compress.selectText.1=Handmatige modus - Van 1 tot 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimalisatieniveau:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Grijsschaal toepassen voor compressie

src/main/resources/messages_no_NB.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konverter til PDF
 compress.title=Komprimer
 compress.header=Komprimer PDF
 compress.credit=Denne tjenesten bruker qpdf for PDF-komprimering/optimisering.
+compress.grayscale.label=Bruk gråskala for komprimering
 compress.selectText.1=Manuell modus - Fra 1 til 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimeringsnivå:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Bruk gråskala for komprimering

src/main/resources/messages_pl_PL.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konwertuj na PDF
 compress.title=Kompresuj
 compress.header=Kompresuj PDF
 compress.credit=Ta usługa używa qpdf do kompresji/optymalizacji PDF.
+compress.grayscale.label=Zastosuj skalę szarości do kompresji
 compress.selectText.1=Tryb ręczny - Od 1 do 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Poziom optymalizacji:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Zastosuj skalę szarości do kompresji

src/main/resources/messages_pt_BR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Converter para PDF
 compress.title=Comprimir
 compress.header=Comprimir
 compress.credit=Este serviço usa o Qpdf para compressão/otimização de PDF.
+compress.grayscale.label=Aplicar escala de cinza para compressão
 compress.selectText.1=Modo Manual - De 1 a 9
 compress.selectText.1.1=Nos níveis de otimização 6-9, além da compressão normal do PDF, a resolução das imagens são reduzidas, para diminuir ainda mais o tamanho do arquivo. Quanto maior o nível, maior a compressão da imagem (até 50% do tamanho original), resultando em tamanho menor do arquivo, porém com menor qualidade nas imagens.
 compress.selectText.2=Nível de Otimização:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Versão
 validateSignature.cert.keyUsage=Uso da chave
 validateSignature.cert.selfSigned=Autoassinados
 validateSignature.cert.bits=bits
-compress.grayscale.label=Aplicar escala de cinza para compressão

src/main/resources/messages_pt_PT.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Converter para PDF
 compress.title=Comprimir
 compress.header=Comprimir PDF
 compress.credit=Este serviço usa qpdf para Compressão/Otimização de PDF.
+compress.grayscale.label=Aplicar escala de cinzentos para compressão
 compress.selectText.1=Modo Manual - De 1 a 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Nível de otimização:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Versão
 validateSignature.cert.keyUsage=Utilização da Chave
 validateSignature.cert.selfSigned=Auto-Assinado
 validateSignature.cert.bits=bits
-compress.grayscale.label=Aplicar escala de cinzentos para compressão

src/main/resources/messages_ro_RO.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Convertiți în PDF
 compress.title=Comprimare
 compress.header=Comprimare PDF
 compress.credit=Acest serviciu utilizează qpdf pentru comprimarea/optimizarea PDF-urilor.
+compress.grayscale.label=Aplicare scală de gri pentru compresie
 compress.selectText.1=Modul manual - de la 1 la 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Nivel de optimizare:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Aplicare scală de gri pentru compresie

src/main/resources/messages_ru_RU.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Преобразовать в PDF
 compress.title=Сжать
 compress.header=Сжать PDF
 compress.credit=Этот сервис использует qpdf для сжатия/оптимизации PDF.
+compress.grayscale.label=Применить шкалу серого для сжатия
 compress.selectText.1=Ручной режим - от 1 до 5
 compress.selectText.1.1=На уровнях оптимизации от 6 до 9, помимо общего сжатия PDF, разрешение изображений уменьшается для дальнейшего сокращения размера файла. Более высокие уровни приводят к более сильному сжатию изображений (до 50% от исходного размера), обеспечивая большее уменьшение размера, но с возможной потерей качества изображений.
 compress.selectText.2=Уровень оптимизации:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Версия
 validateSignature.cert.keyUsage=Использование ключа
 validateSignature.cert.selfSigned=Самоподписанный
 validateSignature.cert.bits=бит
-compress.grayscale.label=Применить шкалу серого для сжатия

src/main/resources/messages_sk_SK.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konvertovať do PDF
 compress.title=Komprimovať
 compress.header=Komprimovať PDF
 compress.credit=Táto služba používa qpdf pre kompresiu/optimalizáciu PDF.
+compress.grayscale.label=Použiť odtiene šedej na kompresiu
 compress.selectText.1=Manuálny režim - Od 1 do 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Úroveň optimalizácie:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Použiť odtiene šedej na kompresiu

src/main/resources/messages_sl_SI.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Pretvori v PDF
 compress.title=Stisnite
 compress.header=Stisnite PDF
 compress.credit=Ta storitev uporablja qpdf za stiskanje/optimizacijo PDF.
+compress.grayscale.label=Uporabi sivinsko lestvico za stiskanje
 compress.selectText.1=Ročni način - Od 1 do 5
 compress.selectText.1.1=Na stopnjah optimizacije od 6 do 9 je poleg splošnega stiskanja PDF ločljivost slike zmanjšana, da se dodatno zmanjša velikost datoteke. Višje ravni povzročijo močnejše stiskanje slike (do 50 % prvotne velikosti), s čimer se doseže večje zmanjšanje velikosti, vendar s potencialno izgubo kakovosti slik.
 compress.selectText.2=Raven optimizacije:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Različica
 validateSignature.cert.keyUsage=Uporaba ključa
 validateSignature.cert.selfSigned=Samopodpisano
 validateSignature.cert.bits=bits
-compress.grayscale.label=Uporabi sivinsko lestvico za stiskanje

src/main/resources/messages_sr_LATN_RS.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konvertuj u PDF
 compress.title=Kompresija
 compress.header=Kompresuj PDF
 compress.credit=Ova usluga koristi qpdf za kompresiju / optimizaciju PDF-a.
+compress.grayscale.label=Primeni sivinu za kompresiju
 compress.selectText.1=Ručni režim - Od 1 do 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Nivo optimizacije:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Primeni sivinu za kompresiju

src/main/resources/messages_sv_SE.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Konvertera till PDF
 compress.title=Komprimera
 compress.header=Komprimera PDF
 compress.credit=Denna tjänst använder qpdf för PDF-komprimering/optimering.
+compress.grayscale.label=Tillämpa gråskala för komprimering
 compress.selectText.1=Manuellt läge - Från 1 till 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimeringsnivå:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Tillämpa gråskala för komprimering

src/main/resources/messages_th_TH.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=แปลงเป็น PDF
 compress.title=บีบอัด
 compress.header=บีบอัด PDF
 compress.credit=บริการนี้ใช้ qpdf สำหรับการบีบอัด/การเพิ่มประสิทธิภาพ PDF
+compress.grayscale.label=ใช้ระดับสีเทาสำหรับการบีบอัด
 compress.selectText.1=โหมดแมนนวล - จาก 1 ถึง 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=ระดับการเพิ่มประสิทธิภาพ:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=ใช้ระดับสีเทาสำหรับการบีบอัด

src/main/resources/messages_tr_TR.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDF'e Dönüştür
 compress.title=Sıkıştır
 compress.header=PDF'i Sıkıştır
 compress.credit=Bu hizmet PDF Sıkıştırma/Optimizasyonu için qpdf kullanır.
+compress.grayscale.label=Sıkıştırma için Gri Ton Uygula
 compress.selectText.1=Manuel Mod - 1'den 5'e
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimizasyon seviyesi:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Sıkıştırma için Gri Ton Uygula

src/main/resources/messages_uk_UA.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Перетворити у PDF
 compress.title=Стиснути
 compress.header=Стиснути PDF
 compress.credit=Ця служба використовує qpdf для стиснення/оптимізації PDF.
+compress.grayscale.label=Застосувати відтінки сірого для стиснення
 compress.selectText.1=Ручний режим - від 1 до 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Рівень оптимізації:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Застосувати відтінки сірого для стиснення

src/main/resources/messages_vi_VN.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=Chuyển đổi sang PDF
 compress.title=Nén
 compress.header=Nén PDF
 compress.credit=Dịch vụ này sử dụng qpdf để Nén/Tối ưu hóa PDF.
+compress.grayscale.label=Áp dụng thang độ xám để nén
 compress.selectText.1=Chế độ thủ công - Từ 1 đến 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Mức độ tối ưu hóa:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=Version
 validateSignature.cert.keyUsage=Key Usage
 validateSignature.cert.selfSigned=Self-Signed
 validateSignature.cert.bits=bits
-compress.grayscale.label=Áp dụng thang độ xám để nén

src/main/resources/messages_zh_BO.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=PDF ལ་བསྒྱུར་བ།
 compress.title=སྡུད་སྒྲིལ།
 compress.header=PDF སྡུད་སྒྲིལ།
 compress.credit=ཞབས་ཞུ་འདིས་ PDF སྡུད་སྒྲིལ་/ཡར་རྒྱས་གཏོང་བའི་ཆེད་དུ་ qpdf བེད་སྤྱོད་བྱེད་པ།
+compress.grayscale.label=应用灰度进行压缩
 compress.selectText.1=Manual Mode - From 1 to 4
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=Optimisation level:
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=པར་གཞི།
 validateSignature.cert.keyUsage=ལྡེ་མིག་བེད་སྤྱོད།
 validateSignature.cert.selfSigned=རང་མིང་རྟགས།
 validateSignature.cert.bits=གནས།
-compress.grayscale.label=应用灰度进行压缩

src/main/resources/messages_zh_CN.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=转换为 PDF
 compress.title=压缩
 compress.header=压缩 PDF
 compress.credit=此服务使用qpdf进行 PDF 压缩/优化。
+compress.grayscale.label=应用灰度进行压缩
 compress.selectText.1=手动模式 - 从 1 到 5
 compress.selectText.1.1=In optimization levels 6 to 9, in addition to general PDF compression, image resolution is scaled down to further reduce file size. Higher levels result in stronger image compression (up to 50% of the original size), achieving greater size reduction but with potential quality loss in images.
 compress.selectText.2=优化级别：
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=版本
 validateSignature.cert.keyUsage=密钥用途
 validateSignature.cert.selfSigned=自签名
 validateSignature.cert.bits=比特
-compress.grayscale.label=应用灰度进行压缩

src/main/resources/messages_zh_TW.properties

@@ -951,6 +951,7 @@ fileToPDF.submit=轉換為 PDF
 compress.title=壓縮
 compress.header=壓縮 PDF
 compress.credit=此服務使用 qpdf 進行 PDF 壓縮/最佳化。
+compress.grayscale.label=應用灰階進行壓縮
 compress.selectText.1=手動模式 - 從 1 到 5
 compress.selectText.1.1=在最佳化等級 6 到 9 時，除了一般 PDF 壓縮外，圖片解析度也會降低以進一步減少檔案大小。較高的壓縮等級會進行更高強度的圖片壓縮（最多可壓縮到原始大小的 50%），以達到更高的壓縮率，但可能會影響圖片品質。
 compress.selectText.2=最佳化等級：
@@ -1384,4 +1385,3 @@ validateSignature.cert.version=版本
 validateSignature.cert.keyUsage=金鑰用途
 validateSignature.cert.selfSigned=自我簽署
 validateSignature.cert.bits=位元
-compress.grayscale.label=應用灰階進行壓縮

src/main/resources/settings.yml.template

@@ -86,7 +86,7 @@ system:
   showUpdateOnlyAdmin: false # only admins can see when a new update is available, depending on showUpdate it must be set to 'true'
   customHTMLFiles: false # enable to have files placed in /customFiles/templates override the existing template HTML files
   tessdataDir: /usr/share/tessdata # path to the directory containing the Tessdata files. This setting is relevant for Windows systems. For Windows users, this path should be adjusted to point to the appropriate directory where the Tessdata files are stored.
-  enableAnalytics: 'undefined' # set to 'true' to enable analytics, set to 'false' to disable analytics; for enterprise users, this is set to true
+  enableAnalytics: null # set to 'true' to enable analytics, set to 'false' to disable analytics; for enterprise users, this is set to true
   disableSanitize: false # set to true to disable Sanitize HTML; (can lead to injections in HTML)
   datasource:
     enableCustomDatabase: false # Enterprise users ONLY, set this property to 'true' if you would like to use your own custom database configuration
@@ -111,7 +111,7 @@ ui:
   appName: '' # application's visible name
   homeDescription: '' # short description or tagline shown on the homepage
   appNameNavbar: '' # name displayed on the navigation bar
-  languages: [] # If empty, all languages ​​are enabled. To display only German and Polish ["de_DE", "pl_PL"]. British English is always enabled.
+  languages: [] # If empty, all languages are enabled. To display only German and Polish ["de_DE", "pl_PL"]. British English is always enabled.
 
 endpoints:
   toRemove: [] # list endpoints to disable (e.g. ['img-to-pdf', 'remove-pages'])

src/main/resources/static/3rdPartyLicenses.json

@@ -3,14 +3,14 @@
         {
             "moduleName": "ch.qos.logback:logback-classic",
             "moduleUrl": "http://www.qos.ch",
-            "moduleVersion": "1.5.16",
+            "moduleVersion": "1.5.17",
             "moduleLicense": "GNU Lesser General Public License",
             "moduleLicenseUrl": "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html"
         },
         {
             "moduleName": "ch.qos.logback:logback-core",
             "moduleUrl": "http://www.qos.ch",
-            "moduleVersion": "1.5.16",
+            "moduleVersion": "1.5.17",
             "moduleLicense": "GNU Lesser General Public License",
             "moduleLicenseUrl": "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html"
         },
@@ -1371,6 +1371,13 @@
             "moduleLicense": "MIT License",
             "moduleLicenseUrl": "http://www.opensource.org/licenses/mit-license.php"
         },
+        {
+            "moduleName": "org.snakeyaml:snakeyaml-engine",
+            "moduleUrl": "https://bitbucket.org/snakeyaml/snakeyaml-engine",
+            "moduleVersion": "2.9",
+            "moduleLicense": "Apache License, Version 2.0",
+            "moduleLicenseUrl": "http://www.apache.org/licenses/LICENSE-2.0.txt"
+        },
         {
             "moduleName": "org.springdoc:springdoc-openapi-starter-common",
             "moduleVersion": "2.2.0",

src/main/resources/static/js/pages/home.js

@@ -51,6 +51,7 @@ document.addEventListener('DOMContentLoaded', function () {
   const storedVersion = localStorage.getItem('surveyVersion');
   if (storedVersion && storedVersion !== surveyVersion) {
     localStorage.setItem('pageViews', '0');
+    localStorage.setItem('surveyVersion', surveyVersion));
   }
 
   let pageViews = parseInt(localStorage.getItem('pageViews') || '0');

src/main/resources/templates/fragments/navElements.html

@@ -59,9 +59,6 @@
       <div
         th:replace="~{fragments/navbarEntry :: navbarEntry('markdown-to-pdf', 'markdown', 'home.MarkdownToPDF.title', 'home.MarkdownToPDF.desc', 'MarkdownToPDF.tags', 'convertto')}">
       </div>
-      <div
-        th:replace="~{fragments/navbarEntry :: navbarEntry('book-to-pdf', 'book', 'home.BookToPDF.title', 'home.BookToPDF.desc', 'BookToPDF.tags', 'convertto')}">
-      </div>
     </div>
   </div>
   <div id="groupConvertFrom" class="feature-group">
@@ -92,9 +89,6 @@
       <div
         th:replace="~{fragments/navbarEntry :: navbarEntry('pdf-to-csv', 'csv', 'home.tableExtraxt.title', 'home.tableExtraxt.desc', 'tableExtraxt.tags', 'convert')}">
       </div>
-      <div
-        th:replace="~{fragments/navbarEntry :: navbarEntry('pdf-to-book', 'book', 'home.PDFToBook.title', 'home.PDFToBook.desc', 'PDFToBook.tags', 'convert')}">
-      </div>
       <div
         th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-markdown', 'markdown_copy', 'home.PDFToMarkdown.title', 'home.PDFToMarkdown.desc', 'PDFToMarkdown.tags', 'convert')}">
       </div>
@@ -120,9 +114,6 @@
       <div
         th:replace="~{fragments/navbarEntry :: navbarEntry('markdown-to-pdf', 'markdown', 'home.MarkdownToPDF.title', 'home.MarkdownToPDF.desc', 'MarkdownToPDF.tags', 'convertto')}">
       </div>
-      <div
-        th:replace="~{fragments/navbarEntry :: navbarEntry('book-to-pdf', 'book', 'home.BookToPDF.title', 'home.BookToPDF.desc', 'BookToPDF.tags', 'convertto')}">
-      </div>
     </div>
     <div th:replace="~{fragments/featureGroupHeader :: featureGroupHeader(groupTitle=#{navbar.sections.convertFrom})}">
     </div>
@@ -151,9 +142,6 @@
       <div
         th:replace="~{fragments/navbarEntry :: navbarEntry('pdf-to-csv', 'csv', 'home.tableExtraxt.title', 'home.tableExtraxt.desc', 'tableExtraxt.tags', 'convert')}">
       </div>
-      <div
-        th:replace="~{fragments/navbarEntry :: navbarEntry('pdf-to-book', 'book', 'home.PDFToBook.title', 'home.PDFToBook.desc', 'PDFToBook.tags', 'convert')}">
-      </div>
     </div>
   </div>
   <div id="groupSecurity" class="feature-group">

src/main/resources/templates/fragments/navbar.html

@@ -89,12 +89,12 @@
           </li>
 
           <li class="nav-item">
-            <a class="nav-link" href="#" th:href="@{'/split-pdfs'}"
+            <a class="nav-link" href="#" th:href="@{'/view-pdf'}"
-              th:classappend="${currentPage}=='split-pdfs' ? 'active' : ''" th:title="#{home.split.desc}">
+              th:classappend="${currentPage}=='view-pdf' ? 'active' : ''" th:title="#{home.viewPdf.desc}">
               <span class="material-symbols-rounded">
-                cut
+                menu_book
               </span>
-              <span class="icon-text" th:data-text="#{home.split.title}" th:text="#{home.split.title}"></span>
+              <span class="icon-text" th:data-text="#{home.viewPdf.title}" th:text="#{home.viewPdf.title}"></span>
             </a>
           </li>
 

src/main/resources/templates/home-legacy.html

@@ -163,9 +163,6 @@
               <div
                 th:replace="~{fragments/card :: card(id='markdown-to-pdf', cardTitle=#{home.MarkdownToPDF.title}, cardText=#{home.MarkdownToPDF.desc}, cardLink='markdown-to-pdf', toolIcon='markdown', tags=#{MarkdownToPDF.tags}, toolGroup='convert')}">
               </div>
-              <div
-                th:replace="~{fragments/card :: card(id='book-to-pdf', cardTitle=#{home.BookToPDF.title}, cardText=#{home.BookToPDF.desc}, cardLink='book-to-pdf', toolIcon='book', tags=#{BookToPDF.tags}, toolGroup='convert')}">
-              </div>
             </div>
           </div>
 
@@ -198,9 +195,6 @@
               <div
                 th:replace="~{fragments/card :: card(id='pdf-to-csv', cardTitle=#{home.tableExtraxt.title}, cardText=#{home.tableExtraxt.desc}, cardLink='pdf-to-csv', toolIcon='csv', tags=#{tableExtraxt.tags}, toolGroup='convert')}">
               </div>
-              <div
-                th:replace="~{fragments/card :: card(id='pdf-to-book', cardTitle=#{home.PDFToBook.title}, cardText=#{home.PDFToBook.desc}, cardLink='pdf-to-book', toolIcon='book', tags=#{PDFToBook.tags}, toolGroup='convert')}">
-              </div>
             </div>
           </div>
 

src/main/resources/templates/view-pdf.html

@@ -357,10 +357,6 @@ See https://github.com/adobe-type-tools/cmap-resources
                   data-l10n-id="pdfjs-page-input" autocomplete="off">
               </span>
               <span id="numPages" class="toolbarLabel"></span>
-              <a class="navbar-brand hiddenMediumView" th:href="@{'/'}" tabindex="16">
-                <img class="main-icon" th:src="@{'/favicon.svg'}" alt="icon" style="max-height: 1.6rem; width: auto;">
-                <span class="icon-text" th:text="${@appName}">Stirling PDF</span>
-              </a>
             </div>
             <div id="toolbarViewerRight">
               <div id="editorModeButtons" class="splitToolbarButton toggled" role="radiogroup">

src/test/java/stirling/software/SPDF/config/security/CustomLogoutSuccessHandlerTest.java

@@ -259,4 +259,4 @@ class CustomLogoutSuccessHandlerTest {
 
         verify(response).sendRedirect(url + "/login?errorOAuth=" + error);
     }
-}
+}

src/test/java/stirling/software/SPDF/controller/api/converters/ConvertWebsiteToPdfTest.java

@@ -21,7 +21,7 @@ public class ConvertWebsiteToPdfTest {
     @Mock
     private RuntimePathConfig runtimePathConfig;
 
-    
+
     private ConvertWebsiteToPDF convertWebsiteToPDF;
 
     @BeforeEach

src/test/java/stirling/software/SPDF/utils/FileToPdfTest.java

@@ -5,31 +5,79 @@ import stirling.software.SPDF.model.api.converters.HTMLToPdfRequest;
 
 import java.io.IOException;
 
-import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.*;
 
 public class FileToPdfTest {
 
+    /**
+     * Test the HTML to PDF conversion.
+     * This test expects an IOException when an empty HTML input is provided.
+     */
     @Test
     public void testConvertHtmlToPdf() {
         HTMLToPdfRequest request = new HTMLToPdfRequest();
-        byte[] fileBytes = new byte[0]; // Sample file bytes
+        byte[] fileBytes = new byte[0]; // Sample file bytes (empty input)
-        String fileName = "test.html"; // Sample file name
+        String fileName = "test.html"; // Sample file name indicating an HTML file
-        boolean disableSanitize = false; // Sample boolean value
+        boolean disableSanitize = false; // Flag to control sanitization
 
-        // Check if the method throws IOException
+        // Expect an IOException to be thrown due to empty input
-        assertThrows(IOException.class, () -> {
+        Throwable thrown =
-            FileToPdf.convertHtmlToPdf("/path/",request, fileBytes, fileName, disableSanitize);
+                assertThrows(
-        });
+                        IOException.class,
+                        () ->
+                                FileToPdf.convertHtmlToPdf(
+                                        "/path/", request, fileBytes, fileName, disableSanitize));
+        assertNotNull(thrown);
     }
 
+    /**
+     * Test sanitizeZipFilename with null or empty input.
+     * It should return an empty string in these cases.
+     */
     @Test
-    public void testConvertBookTypeToPdf() {
+    public void testSanitizeZipFilename_NullOrEmpty() {
-        byte[] bytes = new byte[10]; // Sample bytes
+        assertEquals("", FileToPdf.sanitizeZipFilename(null));
-        String originalFilename = "test.epub"; // Sample original filename
+        assertEquals("", FileToPdf.sanitizeZipFilename("   "));
+    }
 
-        // Check if the method throws IOException
+    /**
-        assertThrows(IOException.class, () -> {
+     * Test sanitizeZipFilename to ensure it removes path traversal sequences.
-            FileToPdf.convertBookTypeToPdf(bytes, originalFilename);
+     * This includes removing both forward and backward slash sequences.
-        });
+     */
+    @Test
+    public void testSanitizeZipFilename_RemovesTraversalSequences() {
+        String input = "../some/../path/..\\to\\file.txt";
+        String expected = "some/path/to/file.txt";
+
+        // Print output for debugging purposes
+        System.out.println("sanitizeZipFilename " + FileToPdf.sanitizeZipFilename(input));
+        System.out.flush();
+
+        // Expect that the method replaces backslashes with forward slashes
+        // and removes path traversal sequences
+        assertEquals(expected, FileToPdf.sanitizeZipFilename(input));
+    }
+
+    /**
+     * Test sanitizeZipFilename to ensure that it removes leading drive letters and slashes.
+     */
+    @Test
+    public void testSanitizeZipFilename_RemovesLeadingDriveAndSlashes() {
+        String input = "C:\\folder\\file.txt";
+        String expected = "folder/file.txt";
+        assertEquals(expected, FileToPdf.sanitizeZipFilename(input));
+
+        input = "/folder/file.txt";
+        expected = "folder/file.txt";
+        assertEquals(expected, FileToPdf.sanitizeZipFilename(input));
+    }
+
+    /**
+     * Test sanitizeZipFilename to verify that safe filenames remain unchanged.
+     */
+    @Test
+    public void testSanitizeZipFilename_NoChangeForSafeNames() {
+        String input = "folder/subfolder/file.txt";
+        assertEquals(input, FileToPdf.sanitizeZipFilename(input));
     }
 }

src/test/java/stirling/software/SPDF/utils/validation/ValidatorTest.java

@@ -51,4 +51,4 @@ class ValidatorTest {
         );
     }
 
-}
+}