Merge pull request #699 from Stirling-Tools/pdfbox3

PDFBox v3 upgrade plus resolution to reversed text

CONTRIBUTING.md

@@ -0,0 +1,40 @@
+# Contributing to Stirling-PDF
+
+Thank you for your interest in contributing to Stirling-PDF! There are many ways to contribute other than writing code. For example, reporting bugs, creating suggestions, and adding or modifying translations.
+
+## Issue Guidelines
+
+Issues can be used to report bugs, request features, or ask questions. If you have a question, you could also ask us in our [Discord](https://discord.gg/FJUSXUSYec).
+
+Before opening an issue, please check to make sure someone hasn't already opened an issue about it.
+
+## Pull Requests
+
+Before you start working on an issue, please comment on (or create) the issue and wait for it to be assigned to you. If someone has already been assigned but didn't have the time to work on it lately, please communicate with them and ask if they're still working on it. This is to avoid multiple people working on the same issue.
+
+Once you have been assigned an issue, you can start working on it. When you are ready to submit your changes, open a pull request.
+For a detailed pull request tutorial, see [this guide](https://www.digitalocean.com/community/tutorials/how-to-create-a-pull-request-on-github).
+
+Please make sure your Pull Request adheres to the following guidelines:
+
+- Use the PR template provided.
+- Keep your Pull Request title succinct, detailed and to the point.
+- Keep commits atomic. One commit should contain one change. If you want to make multiple changes, submit multiple Pull Requests.
+- Commits should be clear, concise and easy to understand.
+- References to the Issue number in the Pull Request and/or Commit message.
+
+## Translations
+
+If you would like to add or modify a translation, please see [How to add new languages to Stirling-PDF](HowToAddNewLanguage.md). Also, please create a Pull Request so others can use it!
+
+## Fixing Bugs or Adding a New Feature
+
+First, make sure you've read the section [Pull Requests](#pull-requests).
+
+To build from source, please follow this [Guide](LocalRunGuide.md).
+
+If, at any point of time, you have a question, please feel free to ask in the same issue thread or in our [Discord](https://discord.gg/FJUSXUSYec).
+
+## License
+
+By contributing to this project, you agree that your contributions will be licensed under the [GPL 3 License](LICENSE). You also acknowledge and agree that your contributions will be included in Stirling-PDF and that they can be relicensed in the future under the MPL 2.0 (Mozilla Public License Version 2.0) license.

FolderScanning.md

@@ -2,7 +2,7 @@
 
 ### Whilst Pipelines are in alpha...
 You must enable this alpha functionality by setting
-```
+```yaml
 system:
   enableAlphaFunctionality: true
 ```

HowToAddNewLanguage.md

@@ -16,7 +16,7 @@ If your language isnt represented by a flag just find whichever closely matches
 
 
 For example to add Polish you would add 
-```
+```html
 <a class="dropdown-item lang_dropdown-item" href="" data-language-code="pl_PL">
     <img src="images/flags/pl.svg" alt="icon" width="20" height="15"> Polski
 </a>

PipelineFeature.md

@@ -2,7 +2,7 @@
 
 ## Whilst Pipelines are in alpha...
 You must enable this alpha functionality by setting
-```
+```yaml
 system:
   enableAlphaFunctionality: true
 ```

README.md

@@ -16,15 +16,13 @@ Stirling PDF makes no outbound calls for any record keeping or tracking.
 
 All files and PDFs exist either exclusively on the client side, reside in server memory only during task execution, or temporarily reside in a file solely for the execution of the task. Any file downloaded by the user will have been deleted from the server by that point.
 
-Please feel free to submit feature requests or report bugs either through GitHub issues or on our [Discord](https://discord.gg/Cn8pWhQRxZ)
-
 ![stirling-home](images/stirling-home.png)
 
 ## Features
 - Dark mode support.
 - Custom download options (see [here](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/images/settings.png) for example)
 - Parallel file processing and downloads
-- API for integration with external scripts 
+- API for integration with external scripts
 - Optional Login and Authentication support (see [here](https://github.com/Stirling-Tools/Stirling-PDF/tree/main#login-authentication) for documentation)
 
 
@@ -32,56 +30,56 @@ Please feel free to submit feature requests or report bugs either through GitHub
 
 ### **Page Operations**
 - View and modify PDFs - View multi page PDFs with custom viewing sorting and searching. Plus on page edit features like annotate, draw and adding text and images. (Using PDF.js with Joxit and Liberation.Liberation fonts)
-- Full interactive GUI for merging/splitting/rotating/moving PDFs and their pages. 
+- Full interactive GUI for merging/splitting/rotating/moving PDFs and their pages.
-- Merge multiple PDFs together into a single resultant file. 
+- Merge multiple PDFs together into a single resultant file.
-- Split PDFs into multiple files at specified page numbers or extract all pages as individual files. 
+- Split PDFs into multiple files at specified page numbers or extract all pages as individual files.
-- Reorganize PDF pages into different orders. 
+- Reorganize PDF pages into different orders.
-- Rotate PDFs in 90-degree increments. 
+- Rotate PDFs in 90-degree increments.
-- Remove pages. 
+- Remove pages.
-- Multi-page layout (Format PDFs into a multi-paged page). 
+- Multi-page layout (Format PDFs into a multi-paged page).
-- Scale page contents size by set %. 
+- Scale page contents size by set %.
-- Adjust Contrast. 
+- Adjust Contrast.
-- Crop PDF. 
+- Crop PDF.
-- Auto Split PDF (With physically scanned page dividers). 
+- Auto Split PDF (With physically scanned page dividers).
-- Extract page(s). 
+- Extract page(s).
-- Convert PDF to a single page. 
+- Convert PDF to a single page.
 
 ### **Conversion Operations**
-- Convert PDFs to and from images. 
+- Convert PDFs to and from images.
-- Convert any common file to PDF (using LibreOffice). 
+- Convert any common file to PDF (using LibreOffice).
-- Convert PDF to Word/Powerpoint/Others (using LibreOffice). 
+- Convert PDF to Word/Powerpoint/Others (using LibreOffice).
-- Convert HTML to PDF. 
+- Convert HTML to PDF.
-- URL to PDF. 
+- URL to PDF.
-- Markdown to PDF. 
+- Markdown to PDF.
 
 ### **Security & Permissions**
-- Add and remove passwords. 
+- Add and remove passwords.
-- Change/set PDF Permissions. 
+- Change/set PDF Permissions.
-- Add watermark(s). 
+- Add watermark(s).
-- Certify/sign PDFs. 
+- Certify/sign PDFs.
-- Sanitize PDFs. 
+- Sanitize PDFs.
-- Auto-redact text. 
+- Auto-redact text.
 
 ### **Other Operations**
-- Add/Generate/Write signatures. 
+- Add/Generate/Write signatures.
-- Repair PDFs. 
+- Repair PDFs.
-- Detect and remove blank pages. 
+- Detect and remove blank pages.
-- Compare 2 PDFs and show differences in text. 
+- Compare 2 PDFs and show differences in text.
-- Add images to PDFs. 
+- Add images to PDFs.
-- Compress PDFs to decrease their filesize (Using OCRMyPDF). 
+- Compress PDFs to decrease their filesize (Using OCRMyPDF).
-- Extract images from PDF. 
+- Extract images from PDF.
-- Extract images from Scans. 
+- Extract images from Scans.
-- Add page numbers. 
+- Add page numbers.
-- Auto rename file by detecting PDF header text. 
+- Auto rename file by detecting PDF header text.
-- OCR on PDF (Using OCRMyPDF). 
+- OCR on PDF (Using OCRMyPDF).
-- PDF/A conversion (Using OCRMyPDF). 
+- PDF/A conversion (Using OCRMyPDF).
-- Edit metadata. 
+- Edit metadata.
-- Flatten PDFs. 
+- Flatten PDFs.
-- Get all information on a PDF to view or export as JSON. 
+- Get all information on a PDF to view or export as JSON.
 
 
 For a overview of the tasks and the technology each uses please view [Endpoint-groups.md](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/Endpoint-groups.md)
-Hosted instance/demo of the app can be seen [here](https://pdf.adminforge.de/) hosted by the team at adminforge.de
+Demo of the app is available [here](https://stirlingpdf.io). username: demo, password: demo
 
 ## Technologies used
 - Spring Boot + Thymeleaf
@@ -109,7 +107,7 @@ For people that don't mind about space optimization just use the latest tag.
 ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/frooodle/s-pdf/latest-ultra-lite?label=Stirling-PDF%20Ultra-Lite)
 
 Docker Run
-```
+```bash
 docker run -d \
   -p 8080:8080 \
   -v /location/of/trainingData:/usr/share/tesseract-ocr/5/tessdata \
@@ -118,14 +116,14 @@ docker run -d \
   -e DOCKER_ENABLE_SECURITY=false \
   --name stirling-pdf \
   frooodle/s-pdf:latest
-  
+
-  
+
   Can also add these for customisation but are not required
-  
+
   -v /location/of/customFiles:/customFiles \
 ```
 Docker Compose
-```
+```yaml
 version: '3.3'
 services:
   stirling-pdf:
@@ -146,7 +144,8 @@ Note: Podman is CLI-compatible with Docker, so simply replace "docker" with "pod
 ## Enable OCR/Compression feature
 Please view https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToUseOCR.md
 
-## Want to add your own language?
+## Supported Languages
+
 Stirling PDF currently supports 26!
 - English (English) (en_GB)
 - English (US) (en_US)
@@ -175,15 +174,9 @@ Stirling PDF currently supports 26!
 - Bulgarian (Български) (bg_BG)
 - Sebian Latin alphabet (Srpski) (sr-Latn-RS)
 
-If you want to add your own language to Stirling-PDF please refer
+## Contributing (creating issues, translations, fixing bugs, etc.)
-https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md
-
-And please create a PR to merge it back in so others can use it! 
-
-## How to View
-1. Open a web browser and navigate to `http://localhost:8080/`
-2. Use the application by following the instructions on the website.
 
+Please see our [Contributing Guide](CONTRIBUTING.md)!
 
 ## Customisation
 Stirling PDF allows easy customization of the app.
@@ -197,7 +190,7 @@ This file is located in the ``/configs`` directory and follows standard YAML for
 
 Environment variables are also supported and would override the settings file
 For example in the settings.yml you have
-```
+```yaml
 system:
   defaultLocale: 'en-US'
 ```
@@ -205,7 +198,7 @@ system:
 To have this via an environment variable you would have ``SYSTEM_DEFAULTLOCALE``
 
 The Current list of settings is
-```
+```yaml
 security:
   enableLogin: false # set to 'true' to enable login
   csrfDisabled: true
@@ -243,9 +236,9 @@ For those wanting to use Stirling-PDFs backend API to link with their own custom
 
 ## Login authentication
 ![stirling-login](images/login-light.png)
-### Prerequisites: 
+### Prerequisites:
 - User must have the folder ./configs volumed within docker so that it is retained during updates.
-- Docker uses must download the security jar version by setting ``DOCKER_ENABLE_SECURITY`` to ``true`` in environment variables. 
+- Docker uses must download the security jar version by setting ``DOCKER_ENABLE_SECURITY`` to ``true`` in environment variables.
 - Then either enable login via the settings.yml file or via setting ``SECURITY_ENABLE_LOGIN`` to ``true``
 - Now the initial user will be generated with username ``admin`` and password ``stirling``. On login you will be forced to change the password to a new one. You can also use the environment variables ``SECURITY_INITIALLOGIN_USERNAME`` and  ``SECURITY_INITIALLOGIN_PASSWORD`` to set your own straight away (Recommended to remove them after user creation).
 
@@ -266,10 +259,10 @@ For API usage you must provide a header with 'X-API-Key' and the associated API
 - Progress bar/Tracking
 - Full custom logic pipelines to combine multiple operations together.
 - Folder support with auto scanning to perform operations on
-- Redact text (Via UI not just automated way) 
+- Redact text (Via UI not just automated way)
 - Add Forms
-- Multi page layout (Stich PDF pages together) support x rows y columns and custom page sizing 
+- Multi page layout (Stich PDF pages together) support x rows y columns and custom page sizing
-- Fill forms mannual and automatic 
+- Fill forms mannual and automatic
 
 ### Q2: Why is my application downloading .htm files?
 This is an issue caused commonly by your NGINX configuration. The default file upload size for NGINX is 1MB, you need to add the following in your Nginx sites-available file. ``client_max_body_size SIZE;`` Where "SIZE" is 50M for example for 50MB files.

build.gradle

@@ -12,7 +12,7 @@ plugins {
 import com.github.jk1.license.render.*
 
 group = 'stirling.software'
-version = '0.19.0'
+version = '0.20.0'
 sourceCompatibility = '17'
 
 repositories {
@@ -137,11 +137,11 @@ dependencies {
         exclude group: 'commons-logging', module: 'commons-logging'
     }
     
-    implementation ('org.apache.pdfbox:pdfbox:2.0.30'){
+    implementation ('org.apache.pdfbox:pdfbox:3.0.1'){
         exclude group: 'commons-logging', module: 'commons-logging'
     }
     
-    implementation ('org.apache.pdfbox:xmpbox:2.0.30'){
+    implementation ('org.apache.pdfbox:xmpbox:3.0.1'){
         exclude group: 'commons-logging', module: 'commons-logging'
     }
     
@@ -152,6 +152,7 @@ dependencies {
     implementation group: 'com.google.zxing', name: 'core', version: '3.5.2'
     // https://mvnrepository.com/artifact/org.commonmark/commonmark
     implementation 'org.commonmark:commonmark:0.21.0'
+    implementation 'org.commonmark:commonmark-ext-gfm-tables:0.21.0'
     // https://mvnrepository.com/artifact/com.github.vladimir-bukhtoyarov/bucket4j-core
     implementation 'com.github.vladimir-bukhtoyarov:bucket4j-core:7.6.0'
 
@@ -163,6 +164,9 @@ dependencies {
 tasks.withType(JavaCompile) {
     dependsOn 'spotlessApply'
 }
+compileJava {
+    options.compilerArgs << '-parameters'
+}
 
 task writeVersion {
     def propsFile = file('src/main/resources/version.properties')

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

@@ -1,8 +1,15 @@
 package stirling.software.SPDF.config;
 
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Properties;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
 
 import stirling.software.SPDF.model.ApplicationProperties;
 
@@ -24,8 +31,15 @@ public class AppConfig {
 
     @Bean(name = "appVersion")
     public String appVersion() {
-        String version = getClass().getPackage().getImplementationVersion();
+        Resource resource = new ClassPathResource("version.properties");
-        return (version != null) ? version : "0.0.0";
+        Properties props = new Properties();
+        try {
+            props.load(resource.getInputStream());
+            return props.getProperty("version");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return "0.0.0";
     }
 
     @Bean(name = "homeText")
@@ -57,4 +71,22 @@ public class AppConfig {
         if (appName == null) appName = System.getenv("rateLimit");
         return (appName != null) ? Boolean.valueOf(appName) : false;
     }
+
+    @Bean(name = "RunningInDocker")
+    public boolean runningInDocker() {
+        return Files.exists(Paths.get("/.dockerenv"));
+    }
+
+    @Bean(name = "bookFormatsInstalled")
+    public boolean bookFormatsInstalled() {
+        return applicationProperties.getSystem().getCustomApplications().isInstallBookFormats();
+    }
+
+    @Bean(name = "htmlFormatsInstalled")
+    public boolean htmlFormatsInstalled() {
+        return applicationProperties
+                .getSystem()
+                .getCustomApplications()
+                .isInstallAdvancedHtmlToPDF();
+    }
 }

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

@@ -9,11 +9,14 @@ import java.util.concurrent.ConcurrentHashMap;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.context.annotation.DependsOn;
 import org.springframework.stereotype.Service;
 
 import stirling.software.SPDF.model.ApplicationProperties;
 
 @Service
+@DependsOn({"bookFormatsInstalled"})
 public class EndpointConfiguration {
     private static final Logger logger = LoggerFactory.getLogger(EndpointConfiguration.class);
     private Map<String, Boolean> endpointStatuses = new ConcurrentHashMap<>();
@@ -21,9 +24,14 @@ public class EndpointConfiguration {
 
     private final ApplicationProperties applicationProperties;
 
+    private boolean bookFormatsInstalled;
+
     @Autowired
-    public EndpointConfiguration(ApplicationProperties applicationProperties) {
+    public EndpointConfiguration(
+            ApplicationProperties applicationProperties,
+            @Qualifier("bookFormatsInstalled") boolean bookFormatsInstalled) {
         this.applicationProperties = applicationProperties;
+        this.bookFormatsInstalled = bookFormatsInstalled;
         init();
         processEnvironmentConfigs();
     }
@@ -145,6 +153,12 @@ public class EndpointConfiguration {
         addEndpointToGroup("CLI", "ocr-pdf");
         addEndpointToGroup("CLI", "html-to-pdf");
         addEndpointToGroup("CLI", "url-to-pdf");
+        addEndpointToGroup("CLI", "book-to-pdf");
+        addEndpointToGroup("CLI", "pdf-to-book");
+
+        // Calibre
+        addEndpointToGroup("Calibre", "book-to-pdf");
+        addEndpointToGroup("Calibre", "pdf-to-book");
 
         // python
         addEndpointToGroup("Python", "extract-image-scans");
@@ -215,7 +229,9 @@ public class EndpointConfiguration {
     private void processEnvironmentConfigs() {
         List<String> endpointsToRemove = applicationProperties.getEndpoints().getToRemove();
         List<String> groupsToRemove = applicationProperties.getEndpoints().getGroupsToRemove();
-
+        if (!bookFormatsInstalled) {
+            groupsToRemove.add("Calibre");
+        }
         if (endpointsToRemove != null) {
             for (String endpoint : endpointsToRemove) {
                 disableEndpoint(endpoint.trim());

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

@@ -0,0 +1,98 @@
+package stirling.software.SPDF.config;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Component;
+
+import jakarta.annotation.PostConstruct;
+import stirling.software.SPDF.model.ApplicationProperties;
+import stirling.software.SPDF.utils.ProcessExecutor;
+import stirling.software.SPDF.utils.ProcessExecutor.ProcessExecutorResult;
+
+@Component
+public class PostStartupProcesses {
+
+    @Autowired ApplicationProperties applicationProperties;
+
+    @Autowired
+    @Qualifier("RunningInDocker")
+    private boolean runningInDocker;
+
+    @Autowired
+    @Qualifier("bookFormatsInstalled")
+    private boolean bookFormatsInstalled;
+
+    @Autowired
+    @Qualifier("htmlFormatsInstalled")
+    private boolean htmlFormatsInstalled;
+
+    private static final Logger logger = LoggerFactory.getLogger(PostStartupProcesses.class);
+
+    @PostConstruct
+    public void runInstallCommandBasedOnEnvironment() throws IOException, InterruptedException {
+        List<List<String>> commands = new ArrayList<>();
+        // Checking for DOCKER_INSTALL_BOOK_FORMATS environment variable
+        if (bookFormatsInstalled) {
+            List<String> tmpList = new ArrayList<>();
+            // Set up the timezone configuration commands
+            tmpList.addAll(
+                    Arrays.asList(
+                            "sh",
+                            "-c",
+                            "echo 'tzdata tzdata/Areas select Europe' | debconf-set-selections; "
+                                    + "echo 'tzdata tzdata/Zones/Europe select Berlin' | debconf-set-selections"));
+            commands.add(tmpList);
+
+            // Install calibre with DEBIAN_FRONTEND set to noninteractive
+            tmpList = new ArrayList<>();
+            tmpList.addAll(
+                    Arrays.asList(
+                            "sh",
+                            "-c",
+                            "DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends calibre"));
+            commands.add(tmpList);
+        }
+
+        // Checking for DOCKER_INSTALL_HTML_FORMATS environment variable
+        if (htmlFormatsInstalled) {
+            List<String> tmpList = new ArrayList<>();
+            // Add -y flag for automatic yes to prompts and --no-install-recommends to reduce size
+            tmpList.addAll(
+                    Arrays.asList(
+                            "apt-get", "install", "wkhtmltopdf", "-y", "--no-install-recommends"));
+            commands.add(tmpList);
+        }
+
+        if (!commands.isEmpty()) {
+            // Run the command
+            if (runningInDocker) {
+                List<String> tmpList = new ArrayList<>();
+                tmpList.addAll(Arrays.asList("apt-get", "update"));
+                commands.add(0, tmpList);
+
+                for (List<String> list : commands) {
+                    ProcessExecutorResult returnCode =
+                            ProcessExecutor.getInstance(ProcessExecutor.Processes.INSTALL_APP, true)
+                                    .runCommandWithOutputHandling(list);
+                    logger.info("RC for app installs {}", returnCode.getRc());
+                }
+            } else {
+
+                logger.info(
+                        "Not running inside Docker so skipping automated install process with command.");
+            }
+
+        } else {
+            if (runningInDocker) {
+                logger.info("No custom apps to install.");
+            }
+        }
+    }
+}

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

@@ -115,4 +115,4 @@ public class UserAuthenticationFilter extends OncePerRequestFilter {
 
         return false;
     }
-}
+}

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

@@ -1,13 +1,14 @@
 package stirling.software.SPDF.controller.api;
 
-import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.LayerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
 import org.slf4j.Logger;
@@ -37,9 +38,7 @@ public class CropController {
             description =
                     "This operation takes an input PDF file and crops it according to the given coordinates. Input:PDF Output:PDF Type:SISO")
     public ResponseEntity<byte[]> cropPdf(@ModelAttribute CropPdfForm form) throws IOException {
-
+        PDDocument sourceDocument = Loader.loadPDF(form.getFileInput().getBytes());
-        PDDocument sourceDocument =
-                PDDocument.load(new ByteArrayInputStream(form.getFileInput().getBytes()));
 
         PDDocument newDocument = new PDDocument();
 
@@ -53,7 +52,8 @@ public class CropController {
             // Create a new page with the size of the source page
             PDPage newPage = new PDPage(sourcePage.getMediaBox());
             newDocument.addPage(newPage);
-            PDPageContentStream contentStream = new PDPageContentStream(newDocument, newPage);
+            PDPageContentStream contentStream =
+                    new PDPageContentStream(newDocument, newPage, AppendMode.OVERWRITE, true, true);
 
             // Import the source page as a form XObject
             PDFormXObject formXObject = layerUtility.importPageAsForm(sourceDocument, i);

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

@@ -1,16 +1,17 @@
 package stirling.software.SPDF.controller.api;
 
-import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.nio.file.attribute.BasicFileAttributes;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.List;
 
-import org.apache.pdfbox.io.MemoryUsageSetting;
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.PDFMergerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -27,6 +28,7 @@ import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
 import stirling.software.SPDF.model.api.general.MergePdfsRequest;
+import stirling.software.SPDF.utils.GeneralUtils;
 import stirling.software.SPDF.utils.WebResponseUtils;
 
 @RestController
@@ -84,8 +86,8 @@ public class MergeController {
                 };
             case "byPDFTitle":
                 return (file1, file2) -> {
-                    try (PDDocument doc1 = PDDocument.load(file1.getInputStream());
+                    try (PDDocument doc1 = Loader.loadPDF(file1.getBytes());
-                            PDDocument doc2 = PDDocument.load(file2.getInputStream())) {
+                            PDDocument doc2 = Loader.loadPDF(file2.getBytes())) {
                         String title1 = doc1.getDocumentInformation().getTitle();
                         String title2 = doc2.getDocumentInformation().getTitle();
                         return title1.compareTo(title2);
@@ -106,6 +108,7 @@ public class MergeController {
                     "This endpoint merges multiple PDF files into a single PDF file. The merged file will contain all pages from the input files in the order they were provided. Input:PDF Output:PDF Type:MISO")
     public ResponseEntity<byte[]> mergePdfs(@ModelAttribute MergePdfsRequest form)
             throws IOException {
+        List<File> filesToDelete = new ArrayList<File>();
         try {
             MultipartFile[] files = form.getFileInput();
             Arrays.sort(files, getSortComparator(form.getSortType()));
@@ -113,20 +116,27 @@ public class MergeController {
             PDFMergerUtility mergedDoc = new PDFMergerUtility();
             ByteArrayOutputStream docOutputstream = new ByteArrayOutputStream();
 
-            for (MultipartFile file : files) {
+            for (MultipartFile multipartFile : files) {
-                mergedDoc.addSource(new ByteArrayInputStream(file.getBytes()));
+                File tempFile = GeneralUtils.convertMultipartFileToFile(multipartFile);
+                filesToDelete.add(tempFile);
+                mergedDoc.addSource(tempFile);
             }
 
             mergedDoc.setDestinationFileName(
                     files[0].getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_merged.pdf");
             mergedDoc.setDestinationStream(docOutputstream);
-            mergedDoc.mergeDocuments(MemoryUsageSetting.setupMainMemoryOnly());
+
+            mergedDoc.mergeDocuments(null);
 
             return WebResponseUtils.bytesToWebResponse(
                     docOutputstream.toByteArray(), mergedDoc.getDestinationFileName());
         } catch (Exception ex) {
             logger.error("Error in merge pdf process", ex);
             throw ex;
+        } finally {
+            for (File file : filesToDelete) {
+                file.delete();
+            }
         }
     }
 }

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

@@ -4,6 +4,7 @@ import java.awt.Color;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.LayerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -57,7 +58,7 @@ public class MultiPageLayoutController {
                         : (int) Math.sqrt(pagesPerSheet);
         int rows = pagesPerSheet == 2 || pagesPerSheet == 3 ? 1 : (int) Math.sqrt(pagesPerSheet);
 
-        PDDocument sourceDocument = PDDocument.load(file.getInputStream());
+        PDDocument sourceDocument = Loader.loadPDF(file.getBytes());
         PDDocument newDocument = new PDDocument();
         PDPage newPage = new PDPage(PDRectangle.A4);
         newDocument.addPage(newPage);

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

@@ -8,6 +8,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.Overlay;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.springframework.http.MediaType;
@@ -53,7 +54,7 @@ public class PdfOverlayController {
             // "FixedRepeatOverlay"
             int[] counts = request.getCounts(); // Used for FixedRepeatOverlay mode
 
-            try (PDDocument basePdf = PDDocument.load(baseFile.getInputStream());
+            try (PDDocument basePdf = Loader.loadPDF(baseFile.getBytes());
                     Overlay overlay = new Overlay()) {
                 Map<Integer, String> overlayGuide =
                         prepareOverlayGuide(
@@ -131,7 +132,7 @@ public class PdfOverlayController {
                 overlayFileIndex = (overlayFileIndex + 1) % overlayFiles.length;
             }
 
-            try (PDDocument overlayPdf = PDDocument.load(overlayFiles[overlayFileIndex])) {
+            try (PDDocument overlayPdf = Loader.loadPDF(overlayFiles[overlayFileIndex])) {
                 PDDocument singlePageDocument = new PDDocument();
                 singlePageDocument.addPage(overlayPdf.getPage(pageCountInCurrentOverlay));
                 File tempFile = File.createTempFile("overlay-page-", ".pdf");
@@ -147,7 +148,7 @@ public class PdfOverlayController {
     }
 
     private int getNumberOfPages(File file) throws IOException {
-        try (PDDocument doc = PDDocument.load(file)) {
+        try (PDDocument doc = Loader.loadPDF(file)) {
             return doc.getNumberOfPages();
         }
     }
@@ -159,7 +160,7 @@ public class PdfOverlayController {
             File overlayFile = overlayFiles[(basePageIndex - 1) % overlayFiles.length];
 
             // Load the overlay document to check its page count
-            try (PDDocument overlayPdf = PDDocument.load(overlayFile)) {
+            try (PDDocument overlayPdf = Loader.loadPDF(overlayFile)) {
                 int overlayPageCount = overlayPdf.getNumberOfPages();
                 if ((basePageIndex - 1) % overlayPageCount < overlayPageCount) {
                     overlayGuide.put(basePageIndex, overlayFile.getAbsolutePath());
@@ -181,7 +182,7 @@ public class PdfOverlayController {
             int repeatCount = counts[i];
 
             // Load the overlay document to check its page count
-            try (PDDocument overlayPdf = PDDocument.load(overlayFile)) {
+            try (PDDocument overlayPdf = Loader.loadPDF(overlayFile)) {
                 int overlayPageCount = overlayPdf.getNumberOfPages();
                 for (int j = 0; j < repeatCount; j++) {
                     for (int page = 0; page < overlayPageCount; page++) {

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

@@ -4,6 +4,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.slf4j.Logger;
@@ -42,7 +43,7 @@ public class RearrangePagesPDFController {
         MultipartFile pdfFile = request.getFileInput();
         String pagesToDelete = request.getPageNumbers();
 
-        PDDocument document = PDDocument.load(pdfFile.getBytes());
+        PDDocument document = Loader.loadPDF(pdfFile.getBytes());
 
         // Split the page order string into an array of page numbers or range of numbers
         String[] pageOrderArr = pagesToDelete.split(",");
@@ -179,7 +180,7 @@ public class RearrangePagesPDFController {
         String sortType = request.getCustomMode();
         try {
             // Load the input PDF
-            PDDocument document = PDDocument.load(pdfFile.getInputStream());
+            PDDocument document = Loader.loadPDF(pdfFile.getBytes());
 
             // Split the page order string into an array of page numbers or range of numbers
             String[] pageOrderArr = pageOrder != null ? pageOrder.split(",") : new String[0];

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

@@ -2,6 +2,7 @@ package stirling.software.SPDF.controller.api;
 
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageTree;
@@ -37,7 +38,7 @@ public class RotationController {
         MultipartFile pdfFile = request.getFileInput();
         Integer angle = request.getAngle();
         // Load the PDF document
-        PDDocument document = PDDocument.load(pdfFile.getBytes());
+        PDDocument document = Loader.loadPDF(pdfFile.getBytes());
 
         // Get the list of pages in the document
         PDPageTree pages = document.getPages();

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

@@ -5,6 +5,7 @@ import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.LayerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -66,7 +67,7 @@ public class ScalePagesController {
 
         PDRectangle targetSize = sizeMap.get(targetPDRectangle);
 
-        PDDocument sourceDocument = PDDocument.load(file.getBytes());
+        PDDocument sourceDocument = Loader.loadPDF(file.getBytes());
         PDDocument outputDocument = new PDDocument();
 
         int totalPages = sourceDocument.getNumberOfPages();
@@ -83,7 +84,11 @@ public class ScalePagesController {
 
             PDPageContentStream contentStream =
                     new PDPageContentStream(
-                            outputDocument, newPage, PDPageContentStream.AppendMode.APPEND, true);
+                            outputDocument,
+                            newPage,
+                            PDPageContentStream.AppendMode.APPEND,
+                            true,
+                            true);
 
             float x = (targetSize.getWidth() - sourceSize.getWidth() * scale) / 2;
             float y = (targetSize.getHeight() - sourceSize.getHeight() * scale) / 2;

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

@@ -2,7 +2,6 @@ package stirling.software.SPDF.controller.api;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
@@ -11,6 +10,7 @@ import java.util.stream.Collectors;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.slf4j.Logger;
@@ -46,8 +46,8 @@ public class SplitPDFController {
         MultipartFile file = request.getFileInput();
         String pages = request.getPageNumbers();
         // open the pdf document
-        InputStream inputStream = file.getInputStream();
+
-        PDDocument document = PDDocument.load(inputStream);
+        PDDocument document = Loader.loadPDF(file.getBytes());
 
         List<Integer> pageNumbers = request.getPageNumbersList(document);
         if (!pageNumbers.contains(document.getNumberOfPages() - 1))

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

@@ -9,10 +9,12 @@ import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.LayerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
 import org.apache.pdfbox.util.Matrix;
@@ -45,7 +47,7 @@ public class SplitPdfBySectionsController {
         List<ByteArrayOutputStream> splitDocumentsBoas = new ArrayList<>();
 
         MultipartFile file = request.getFileInput();
-        PDDocument sourceDocument = PDDocument.load(file.getInputStream());
+        PDDocument sourceDocument = Loader.loadPDF(file.getBytes());
 
         // Process the PDF based on split parameters
         int horiz = request.getHorizontalDivisions() + 1;
@@ -115,13 +117,13 @@ public class SplitPdfBySectionsController {
                                     document, document.getPages().indexOf(originalPage));
 
                     try (PDPageContentStream contentStream =
-                            new PDPageContentStream(subDoc, subPage)) {
+                            new PDPageContentStream(
+                                    subDoc, subPage, AppendMode.APPEND, true, true)) {
                         // Set clipping area and position
                         float translateX = -subPageWidth * i;
-                        float translateY = height - subPageHeight * (verticalDivisions - j);
+                       
-
+                        //float translateY = height - subPageHeight * (verticalDivisions - j);
-                        // Code for google Docs pdfs..
+                        float translateY = -subPageHeight * (verticalDivisions - 1 - j);
-                        // float translateY = -subPageHeight * (verticalDivisions - 1 - j);
 
                         contentStream.saveGraphicsState();
                         contentStream.addRect(0, 0, subPageWidth, subPageHeight);

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

@@ -9,6 +9,7 @@ import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.springframework.http.MediaType;
@@ -42,7 +43,7 @@ public class SplitPdfBySizeController {
         List<ByteArrayOutputStream> splitDocumentsBoas = new ArrayList<ByteArrayOutputStream>();
 
         MultipartFile file = request.getFileInput();
-        PDDocument sourceDocument = PDDocument.load(file.getInputStream());
+        PDDocument sourceDocument = Loader.loadPDF(file.getBytes());
 
         // 0 = size, 1 = page count, 2 = doc count
         int type = request.getSplitType();

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

@@ -4,6 +4,7 @@ import java.awt.geom.AffineTransform;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.multipdf.LayerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -40,7 +41,7 @@ public class ToSinglePageController {
             throws IOException {
 
         // Load the source document
-        PDDocument sourceDocument = PDDocument.load(request.getFileInput().getInputStream());
+        PDDocument sourceDocument = Loader.loadPDF(request.getFileInput().getBytes());
 
         // Calculate total height and max width
         float totalHeight = 0;

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

@@ -13,6 +13,7 @@ import org.springframework.security.core.Authentication;
 import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -20,13 +21,18 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 import org.springframework.web.servlet.view.RedirectView;
 
+import io.swagger.v3.oas.annotations.tags.Tag;
+
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import stirling.software.SPDF.config.security.UserService;
 import stirling.software.SPDF.model.Role;
 import stirling.software.SPDF.model.User;
+import stirling.software.SPDF.model.api.user.UpdateUserDetails;
+import stirling.software.SPDF.model.api.user.UsernameAndPass;
 
 @Controller
+@Tag(name = "User", description = "User APIs")
 @RequestMapping("/api/v1/user")
 public class UserController {
 
@@ -34,14 +40,13 @@ public class UserController {
 
     @PreAuthorize("!hasAuthority('ROLE_DEMO_USER')")
     @PostMapping("/register")
-    public String register(
+    public String register(@ModelAttribute UsernameAndPass requestModel, Model model) {
-            @RequestParam String username, @RequestParam String password, Model model) {
+        if (userService.usernameExists(requestModel.getUsername())) {
-        if (userService.usernameExists(username)) {
             model.addAttribute("error", "Username already exists");
             return "register";
         }
 
-        userService.saveUser(username, password);
+        userService.saveUser(requestModel.getUsername(), requestModel.getPassword());
         return "redirect:/login?registered=true";
     }
 
@@ -49,12 +54,15 @@ public class UserController {
     @PostMapping("/change-username-and-password")
     public RedirectView changeUsernameAndPassword(
             Principal principal,
-            @RequestParam String currentPassword,
+            @ModelAttribute UpdateUserDetails requestModel,
-            @RequestParam String newUsername,
-            @RequestParam String newPassword,
             HttpServletRequest request,
             HttpServletResponse response,
             RedirectAttributes redirectAttributes) {
+
+        String currentPassword = requestModel.getPassword();
+        String newPassword = requestModel.getNewPassword();
+        String newUsername = requestModel.getNewUsername();
+
         if (principal == null) {
             return new RedirectView("/change-creds?messageType=notAuthenticated");
         }

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertBookToPDFController.java

@@ -0,0 +1,68 @@
+package stirling.software.SPDF.controller.api.converters;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+import stirling.software.SPDF.model.api.GeneralFile;
+import stirling.software.SPDF.utils.FileToPdf;
+import stirling.software.SPDF.utils.WebResponseUtils;
+
+@RestController
+@Tag(name = "Convert", description = "Convert APIs")
+@RequestMapping("/api/v1/convert")
+public class ConvertBookToPDFController {
+
+    @Autowired
+    @Qualifier("bookFormatsInstalled")
+    private boolean bookFormatsInstalled;
+
+    @PostMapping(consumes = "multipart/form-data", value = "/book/pdf")
+    @Operation(
+            summary =
+                    "Convert a BOOK/comic (*.epub | *.mobi | *.azw3 | *.fb2 | *.txt | *.docx) to PDF",
+            description =
+                    "(Requires bookFormatsInstalled flag and Calibre installed) This endpoint takes an BOOK/comic (*.epub | *.mobi | *.azw3 | *.fb2 | *.txt | *.docx)  input and converts it to PDF format.")
+    public ResponseEntity<byte[]> HtmlToPdf(@ModelAttribute GeneralFile request) throws Exception {
+        MultipartFile fileInput = request.getFileInput();
+
+        if (!bookFormatsInstalled) {
+            throw new IllegalArgumentException(
+                    "bookFormatsInstalled flag is False, this functionality is not avaiable");
+        }
+
+        if (fileInput == null) {
+            throw new IllegalArgumentException("Please provide a file for conversion.");
+        }
+
+        String originalFilename = fileInput.getOriginalFilename();
+
+        if (originalFilename != null) {
+            String originalFilenameLower = originalFilename.toLowerCase();
+            if (!originalFilenameLower.endsWith(".epub")
+                    && !originalFilenameLower.endsWith(".mobi")
+                    && !originalFilenameLower.endsWith(".azw3")
+                    && !originalFilenameLower.endsWith(".fb2")
+                    && !originalFilenameLower.endsWith(".txt")
+                    && !originalFilenameLower.endsWith(".docx")) {
+                throw new IllegalArgumentException(
+                        "File must be in .epub, .mobi, .azw3, .fb2, .txt, or .docx format.");
+            }
+        }
+        byte[] pdfBytes = FileToPdf.convertBookTypeToPdf(fileInput.getBytes(), originalFilename);
+
+        String outputFilename =
+                originalFilename.replaceFirst("[.][^.]+$", "")
+                        + ".pdf"; // Remove file extension and append .pdf
+
+        return WebResponseUtils.bytesToWebResponse(pdfBytes, outputFilename);
+    }
+}

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertHtmlToPDF.java

@@ -1,5 +1,7 @@
 package stirling.software.SPDF.controller.api.converters;
 
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -19,6 +21,10 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/convert")
 public class ConvertHtmlToPDF {
 
+    @Autowired
+    @Qualifier("htmlFormatsInstalled")
+    private boolean htmlFormatsInstalled;
+
     @PostMapping(consumes = "multipart/form-data", value = "/html/pdf")
     @Operation(
             summary = "Convert an HTML or ZIP (containing HTML and CSS) to PDF",
@@ -37,7 +43,9 @@ public class ConvertHtmlToPDF {
                 || (!originalFilename.endsWith(".html") && !originalFilename.endsWith(".zip"))) {
             throw new IllegalArgumentException("File must be either .html or .zip format.");
         }
-        byte[] pdfBytes = FileToPdf.convertHtmlToPdf(fileInput.getBytes(), originalFilename);
+        byte[] pdfBytes =
+                FileToPdf.convertHtmlToPdf(
+                        fileInput.getBytes(), originalFilename, htmlFormatsInstalled);
 
         String outputFilename =
                 originalFilename.replaceFirst("[.][^.]+$", "")

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertMarkdownToPdf.java

@@ -1,8 +1,17 @@
 package stirling.software.SPDF.controller.api.converters;
 
+import java.util.List;
+import java.util.Map;
+
+import org.commonmark.Extension;
+import org.commonmark.ext.gfm.tables.TableBlock;
+import org.commonmark.ext.gfm.tables.TablesExtension;
 import org.commonmark.node.Node;
 import org.commonmark.parser.Parser;
+import org.commonmark.renderer.html.AttributeProvider;
 import org.commonmark.renderer.html.HtmlRenderer;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -22,6 +31,10 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/convert")
 public class ConvertMarkdownToPdf {
 
+    @Autowired
+    @Qualifier("htmlFormatsInstalled")
+    private boolean htmlFormatsInstalled;
+
     @PostMapping(consumes = "multipart/form-data", value = "/markdown/pdf")
     @Operation(
             summary = "Convert a Markdown file to PDF",
@@ -41,12 +54,21 @@ public class ConvertMarkdownToPdf {
         }
 
         // Convert Markdown to HTML using CommonMark
-        Parser parser = Parser.builder().build();
+        List<Extension> extensions = List.of(TablesExtension.create());
+        Parser parser = Parser.builder().extensions(extensions).build();
+
         Node document = parser.parse(new String(fileInput.getBytes()));
-        HtmlRenderer renderer = HtmlRenderer.builder().build();
+        HtmlRenderer renderer =
+                HtmlRenderer.builder()
+                        .attributeProviderFactory(context -> new TableAttributeProvider())
+                        .extensions(extensions)
+                        .build();
+
         String htmlContent = renderer.render(document);
 
-        byte[] pdfBytes = FileToPdf.convertHtmlToPdf(htmlContent.getBytes(), "converted.html");
+        byte[] pdfBytes =
+                FileToPdf.convertHtmlToPdf(
+                        htmlContent.getBytes(), "converted.html", htmlFormatsInstalled);
 
         String outputFilename =
                 originalFilename.replaceFirst("[.][^.]+$", "")
@@ -54,3 +76,12 @@ public class ConvertMarkdownToPdf {
         return WebResponseUtils.bytesToWebResponse(pdfBytes, outputFilename);
     }
 }
+
+class TableAttributeProvider implements AttributeProvider {
+    @Override
+    public void setAttributes(Node node, String tagName, Map<String, String> attributes) {
+        if (node instanceof TableBlock) {
+            attributes.put("class", "table table-striped");
+        }
+    }
+}

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToBookController.java

@@ -0,0 +1,101 @@
+package stirling.software.SPDF.controller.api.converters;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+import stirling.software.SPDF.model.api.converters.PdfToBookRequest;
+import stirling.software.SPDF.utils.ProcessExecutor;
+import stirling.software.SPDF.utils.ProcessExecutor.ProcessExecutorResult;
+import stirling.software.SPDF.utils.WebResponseUtils;
+
+@RestController
+@Tag(name = "Convert", description = "Convert APIs")
+@RequestMapping("/api/v1/convert")
+public class ConvertPDFToBookController {
+
+    @Autowired
+    @Qualifier("bookFormatsInstalled")
+    private boolean bookFormatsInstalled;
+
+    @PostMapping(consumes = "multipart/form-data", value = "/pdf/book")
+    @Operation(
+            summary =
+                    "Convert a PDF to a Book/comic (*.epub | *.mobi | *.azw3 | *.fb2 | *.txt | *.docx .. (others to include by chatgpt) to PDF",
+            description =
+                    "(Requires bookFormatsInstalled flag and Calibre installed) This endpoint Convert a PDF to a Book/comic (*.epub | *.mobi | *.azw3 | *.fb2 | *.txt | *.docx .. (others to include by chatgpt) to PDF")
+    public ResponseEntity<byte[]> HtmlToPdf(@ModelAttribute PdfToBookRequest request)
+            throws Exception {
+        MultipartFile fileInput = request.getFileInput();
+
+        if (!bookFormatsInstalled) {
+            throw new IllegalArgumentException(
+                    "bookFormatsInstalled flag is False, this functionality is not avaiable");
+        }
+
+        if (fileInput == null) {
+            throw new IllegalArgumentException("Please provide a file for conversion.");
+        }
+
+        // Validate the output format
+        String outputFormat = request.getOutputFormat().toLowerCase();
+        List<String> allowedFormats =
+                Arrays.asList(
+                        "epub", "mobi", "azw3", "docx", "rtf", "txt", "html", "lit", "fb2", "pdb",
+                        "lrf");
+        if (!allowedFormats.contains(outputFormat)) {
+            throw new IllegalArgumentException("Invalid output format: " + outputFormat);
+        }
+
+        byte[] outputFileBytes;
+        List<String> command = new ArrayList<>();
+        Path tempOutputFile =
+                Files.createTempFile(
+                        "output_",
+                        "." + outputFormat); // Use the output format for the file extension
+        Path tempInputFile = null;
+
+        try {
+            // Create temp input file from the provided PDF
+            tempInputFile = Files.createTempFile("input_", ".pdf"); // Assuming input is always PDF
+            Files.write(tempInputFile, fileInput.getBytes());
+
+            command.add("ebook-convert");
+            command.add(tempInputFile.toString());
+            command.add(tempOutputFile.toString());
+
+            ProcessExecutorResult returnCode =
+                    ProcessExecutor.getInstance(ProcessExecutor.Processes.CALIBRE)
+                            .runCommandWithOutputHandling(command);
+
+            outputFileBytes = Files.readAllBytes(tempOutputFile);
+        } finally {
+            // Clean up temporary files
+            if (tempInputFile != null) {
+                Files.deleteIfExists(tempInputFile);
+            }
+            Files.deleteIfExists(tempOutputFile);
+        }
+
+        String outputFilename =
+                fileInput.getOriginalFilename().replaceFirst("[.][^.]+$", "")
+                        + "."
+                        + outputFormat; // Remove file extension and append .pdf
+
+        return WebResponseUtils.bytesToWebResponse(outputFileBytes, outputFilename);
+    }
+}

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertWebsiteToPDF.java

@@ -6,6 +6,8 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -26,6 +28,10 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/convert")
 public class ConvertWebsiteToPDF {
 
+    @Autowired
+    @Qualifier("htmlFormatsInstalled")
+    private boolean htmlFormatsInstalled;
+
     @PostMapping(consumes = "multipart/form-data", value = "/url/pdf")
     @Operation(
             summary = "Convert a URL to a PDF",
@@ -47,7 +53,11 @@ public class ConvertWebsiteToPDF {
 
             // Prepare the OCRmyPDF command
             List<String> command = new ArrayList<>();
-            command.add("weasyprint");
+            if (!htmlFormatsInstalled) {
+                command.add("weasyprint");
+            } else {
+                command.add("wkhtmltopdf");
+            }
             command.add(URL);
             command.add(tempOutputFile.toString());
 

src/main/java/stirling/software/SPDF/controller/api/converters/ExtractController.java

@@ -1,10 +1,10 @@
 package stirling.software.SPDF.controller.api.converters;
 
-import java.io.ByteArrayInputStream;
 import java.io.StringWriter;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.slf4j.Logger;
@@ -44,8 +44,7 @@ public class ExtractController {
         ArrayList<String> tableData = new ArrayList<>();
         int columnsCount = 0;
 
-        try (PDDocument document =
+        try (PDDocument document = Loader.loadPDF(form.getFileInput().getBytes())) {
-                PDDocument.load(new ByteArrayInputStream(form.getFileInput().getBytes()))) {
             final double res = 72; // PDF units are at 72 DPI
             PDFTableStripper stripper = new PDFTableStripper();
             PDPage pdPage = document.getPage(form.getPageId() - 1);

src/main/java/stirling/software/SPDF/controller/api/filters/FilterController.java

@@ -2,6 +2,7 @@ package stirling.software.SPDF.controller.api.filters;
 
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
@@ -39,7 +40,7 @@ public class FilterController {
         String text = request.getText();
         String pageNumber = request.getPageNumbers();
 
-        PDDocument pdfDocument = PDDocument.load(inputFile.getInputStream());
+        PDDocument pdfDocument = Loader.loadPDF(inputFile.getBytes());
         if (PdfUtils.hasText(pdfDocument, pageNumber, text))
             return WebResponseUtils.pdfDocToWebResponse(
                     pdfDocument, inputFile.getOriginalFilename());
@@ -56,7 +57,7 @@ public class FilterController {
         MultipartFile inputFile = request.getFileInput();
         String pageNumber = request.getPageNumbers();
 
-        PDDocument pdfDocument = PDDocument.load(inputFile.getInputStream());
+        PDDocument pdfDocument = Loader.loadPDF(inputFile.getBytes());
         if (PdfUtils.hasImages(pdfDocument, pageNumber))
             return WebResponseUtils.pdfDocToWebResponse(
                     pdfDocument, inputFile.getOriginalFilename());
@@ -73,7 +74,7 @@ public class FilterController {
         String pageCount = request.getPageCount();
         String comparator = request.getComparator();
         // Load the PDF
-        PDDocument document = PDDocument.load(inputFile.getInputStream());
+        PDDocument document = Loader.loadPDF(inputFile.getBytes());
         int actualPageCount = document.getNumberOfPages();
 
         boolean valid = false;
@@ -107,7 +108,7 @@ public class FilterController {
         String comparator = request.getComparator();
 
         // Load the PDF
-        PDDocument document = PDDocument.load(inputFile.getInputStream());
+        PDDocument document = Loader.loadPDF(inputFile.getBytes());
 
         PDPage firstPage = document.getPage(0);
         PDRectangle actualPageSize = firstPage.getMediaBox();
@@ -183,7 +184,7 @@ public class FilterController {
         String comparator = request.getComparator();
 
         // Load the PDF
-        PDDocument document = PDDocument.load(inputFile.getInputStream());
+        PDDocument document = Loader.loadPDF(inputFile.getBytes());
 
         // Get the rotation of the first page
         PDPage firstPage = document.getPage(0);

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

@@ -5,6 +5,7 @@ import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.text.PDFTextStripper;
 import org.apache.pdfbox.text.TextPosition;
@@ -43,7 +44,7 @@ public class AutoRenameController {
         MultipartFile file = request.getFileInput();
         Boolean useFirstTextAsFallback = request.isUseFirstTextAsFallback();
 
-        PDDocument document = PDDocument.load(file.getInputStream());
+        PDDocument document = Loader.loadPDF(file.getBytes());
         PDFTextStripper reader =
                 new PDFTextStripper() {
                     class LineInfo {

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

@@ -5,7 +5,6 @@ import java.awt.image.DataBufferByte;
 import java.awt.image.DataBufferInt;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
@@ -13,6 +12,7 @@ import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.rendering.PDFRenderer;
 import org.springframework.http.MediaType;
@@ -54,8 +54,7 @@ public class AutoSplitPdfController {
         MultipartFile file = request.getFileInput();
         boolean duplexMode = request.isDuplexMode();
 
-        InputStream inputStream = file.getInputStream();
+        PDDocument document = Loader.loadPDF(file.getBytes());
-        PDDocument document = PDDocument.load(inputStream);
         PDFRenderer pdfRenderer = new PDFRenderer(document);
 
         List<PDDocument> splitDocuments = new ArrayList<>();

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

@@ -13,6 +13,7 @@ import java.util.stream.IntStream;
 
 import javax.imageio.ImageIO;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageTree;
@@ -53,7 +54,7 @@ public class BlankPageController {
 
         PDDocument document = null;
         try {
-            document = PDDocument.load(inputFile.getInputStream());
+            document = Loader.loadPDF(inputFile.getBytes());
             PDPageTree pages = document.getDocumentCatalog().getPages();
             PDFTextStripper textStripper = new PDFTextStripper();
 

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

@@ -13,6 +13,7 @@ import java.util.List;
 import javax.imageio.ImageIO;
 
 import org.apache.commons.io.FileUtils;
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -147,7 +148,7 @@ public class CompressController {
         if (expectedOutputSize != null && autoMode) {
             long outputFileSize = Files.size(tempOutputFile);
             if (outputFileSize > expectedOutputSize) {
-                try (PDDocument doc = PDDocument.load(new File(tempOutputFile.toString()))) {
+                try (PDDocument doc = Loader.loadPDF(new File(tempOutputFile.toString()))) {
                     long previousFileSize = 0;
                     double scaleFactor = 1.0;
                     while (true) {

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

@@ -1,7 +1,6 @@
 package stirling.software.SPDF.controller.api.misc;
 
 import java.awt.image.BufferedImage;
-import java.io.ByteArrayInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.nio.file.Files;
@@ -17,6 +16,7 @@ import java.util.zip.ZipOutputStream;
 import javax.imageio.ImageIO;
 
 import org.apache.commons.io.FileUtils;
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.rendering.PDFRenderer;
 import org.slf4j.Logger;
@@ -76,8 +76,7 @@ public class ExtractImageScansController {
         // Check if input file is a PDF
         if (extension.equalsIgnoreCase("pdf")) {
             // Load PDF document
-            try (PDDocument document =
+            try (PDDocument document = Loader.loadPDF(form.getFileInput().getBytes())) {
-                    PDDocument.load(new ByteArrayInputStream(form.getFileInput().getBytes()))) {
                 PDFRenderer pdfRenderer = new PDFRenderer(document);
                 int pageCount = document.getNumberOfPages();
                 images = new ArrayList<>();

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

@@ -14,6 +14,7 @@ import java.util.zip.ZipOutputStream;
 
 import javax.imageio.ImageIO;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -53,7 +54,7 @@ public class ExtractImagesController {
 
         System.out.println(
                 System.currentTimeMillis() + "file=" + file.getName() + ", format=" + format);
-        PDDocument document = PDDocument.load(file.getBytes());
+        PDDocument document = Loader.loadPDF(file.getBytes());
 
         // Create ByteArrayOutputStream to write zip file to byte array
         ByteArrayOutputStream baos = new ByteArrayOutputStream();

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

@@ -16,6 +16,7 @@ import java.util.Random;
 
 import javax.imageio.ImageIO;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
@@ -57,7 +58,7 @@ public class FakeScanControllerWIP {
     public ResponseEntity<byte[]> repairPdf(@ModelAttribute PDFFile request) throws IOException {
         MultipartFile inputFile = request.getFileInput();
 
-        PDDocument document = PDDocument.load(inputFile.getBytes());
+        PDDocument document = Loader.loadPDF(inputFile.getBytes());
         PDFRenderer pdfRenderer = new PDFRenderer(document);
         for (int page = 0; page < document.getNumberOfPages(); ++page) {
             BufferedImage image = pdfRenderer.renderImageWithDPI(page, 300, ImageType.RGB);

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

@@ -7,6 +7,7 @@ import java.util.Calendar;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
@@ -67,7 +68,7 @@ public class MetadataController {
             allRequestParams = new java.util.HashMap<String, String>();
         }
         // Load the PDF file into a PDDocument
-        PDDocument document = PDDocument.load(pdfFile.getBytes());
+        PDDocument document = Loader.loadPDF(pdfFile.getBytes());
 
         // Get the document information from the PDF
         PDDocumentInformation info = document.getDocumentInformation();

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

@@ -4,11 +4,13 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.List;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.font.PDType1Font;
+import org.apache.pdfbox.pdmodel.font.Standard14Fonts;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.MediaType;
@@ -48,7 +50,7 @@ public class PageNumbersController {
         String customText = request.getCustomText();
         int pageNumber = startingNumber;
         byte[] fileBytes = file.getBytes();
-        PDDocument document = PDDocument.load(fileBytes);
+        PDDocument document = Loader.loadPDF(fileBytes);
 
         float marginFactor;
         switch (customMargin.toLowerCase()) {
@@ -71,7 +73,6 @@ public class PageNumbersController {
         }
 
         float fontSize = 12.0f;
-        PDType1Font font = PDType1Font.HELVETICA;
         if (pagesToNumber == null || pagesToNumber.length() == 0) {
             pagesToNumber = "all";
         }
@@ -127,9 +128,9 @@ public class PageNumbersController {
 
             PDPageContentStream contentStream =
                     new PDPageContentStream(
-                            document, page, PDPageContentStream.AppendMode.APPEND, true);
+                            document, page, PDPageContentStream.AppendMode.APPEND, true, true);
             contentStream.beginText();
-            contentStream.setFont(font, fontSize);
+            contentStream.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), fontSize);
             contentStream.newLineAtOffset(x, y);
             contentStream.showText(text);
             contentStream.endText();

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

@@ -3,6 +3,7 @@ package stirling.software.SPDF.controller.api.misc;
 import java.nio.charset.StandardCharsets;
 import java.util.Map;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.common.PDNameTreeNode;
 import org.apache.pdfbox.pdmodel.interactive.action.PDActionJavaScript;
@@ -36,7 +37,7 @@ public class ShowJavascript {
         MultipartFile inputFile = request.getFileInput();
         String script = "";
 
-        try (PDDocument document = PDDocument.load(inputFile.getInputStream())) {
+        try (PDDocument document = Loader.loadPDF(inputFile.getBytes())) {
 
             if (document.getDocumentCatalog() != null
                     && document.getDocumentCatalog().getNames() != null) {

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

@@ -16,6 +16,7 @@ import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
 import java.util.Calendar;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.examples.signature.CreateSignatureBase;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature;
@@ -132,7 +133,7 @@ public class CertSignController {
             String name,
             String location,
             String reason) {
-        try (PDDocument doc = PDDocument.load(input)) {
+        try (PDDocument doc = Loader.loadPDF(input)) {
             PDSignature signature = new PDSignature();
             signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE);
             signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);

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

@@ -11,11 +11,9 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
-import org.apache.pdfbox.cos.COSDocument;
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.cos.COSInputStream;
 import org.apache.pdfbox.cos.COSName;
-import org.apache.pdfbox.cos.COSObject;
-import org.apache.pdfbox.cos.COSStream;
 import org.apache.pdfbox.cos.COSString;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
@@ -87,7 +85,7 @@ public class GetInfoOnPDF {
     @Operation(summary = "Summary here", description = "desc. Input:PDF Output:JSON Type:SISO")
     public ResponseEntity<byte[]> getPdfInfo(@ModelAttribute PDFFile request) throws IOException {
         MultipartFile inputFile = request.getFileInput();
-        try (PDDocument pdfBoxDoc = PDDocument.load(inputFile.getInputStream()); ) {
+        try (PDDocument pdfBoxDoc = Loader.loadPDF(inputFile.getBytes()); ) {
             ObjectMapper objectMapper = new ObjectMapper();
             ObjectNode jsonOutput = objectMapper.createObjectNode();
 
@@ -129,17 +127,6 @@ public class GetInfoOnPDF {
             boolean hasCompression = false;
             String compressionType = "None";
 
-            COSDocument cosDoc = pdfBoxDoc.getDocument();
-            for (COSObject cosObject : cosDoc.getObjects()) {
-                if (cosObject.getObject() instanceof COSStream) {
-                    COSStream cosStream = (COSStream) cosObject.getObject();
-                    if (COSName.OBJ_STM.equals(cosStream.getItem(COSName.TYPE))) {
-                        hasCompression = true;
-                        compressionType = "Object Streams";
-                        break;
-                    }
-                }
-            }
             basicInfo.put("Compression", hasCompression);
             if (hasCompression) basicInfo.put("CompressionType", compressionType);
 
@@ -343,7 +330,6 @@ public class GetInfoOnPDF {
                     permissionsNode.put("CanModify", ap.canModify());
                     permissionsNode.put("CanModifyAnnotations", ap.canModifyAnnotations());
                     permissionsNode.put("CanPrint", ap.canPrint());
-                    permissionsNode.put("CanPrintDegraded", ap.canPrintDegraded());
 
                     encryption.set(
                             "Permissions", permissionsNode); // set the node under "Permissions"

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

@@ -2,6 +2,7 @@ package stirling.software.SPDF.controller.api.security;
 
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.encryption.AccessPermission;
 import org.apache.pdfbox.pdmodel.encryption.StandardProtectionPolicy;
@@ -38,7 +39,7 @@ public class PasswordController {
         MultipartFile fileInput = request.getFileInput();
         String password = request.getPassword();
 
-        PDDocument document = PDDocument.load(fileInput.getBytes(), password);
+        PDDocument document = Loader.loadPDF(fileInput.getBytes(), password);
         document.setAllSecurityToBeRemoved(true);
         return WebResponseUtils.pdfDocToWebResponse(
                 document,
@@ -66,7 +67,7 @@ public class PasswordController {
         boolean canPrint = request.isCanPrint();
         boolean canPrintFaithful = request.isCanPrintFaithful();
 
-        PDDocument document = PDDocument.load(fileInput.getBytes());
+        PDDocument document = Loader.loadPDF(fileInput.getBytes());
         AccessPermission ap = new AccessPermission();
         ap.setCanAssembleDocument(!canAssembleDocument);
         ap.setCanExtractContent(!canExtractContent);

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

@@ -2,14 +2,15 @@ package stirling.software.SPDF.controller.api.security;
 
 import java.awt.Color;
 import java.awt.image.BufferedImage;
-import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.List;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
 import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
@@ -57,7 +58,7 @@ public class RedactController {
         System.out.println(listOfTextString);
         String[] listOfText = listOfTextString.split("\n");
         byte[] bytes = file.getBytes();
-        PDDocument document = PDDocument.load(new ByteArrayInputStream(bytes));
+        PDDocument document = Loader.loadPDF(bytes);
 
         Color redactColor;
         try {
@@ -86,7 +87,9 @@ public class RedactController {
                 PDPage newPage = new PDPage(new PDRectangle(bim.getWidth(), bim.getHeight()));
                 imageDocument.addPage(newPage);
                 PDImageXObject pdImage = LosslessFactory.createFromImage(imageDocument, bim);
-                PDPageContentStream contentStream = new PDPageContentStream(imageDocument, newPage);
+                PDPageContentStream contentStream =
+                        new PDPageContentStream(
+                                imageDocument, newPage, AppendMode.APPEND, true, true);
                 contentStream.drawImage(pdImage, 0, 0);
                 contentStream.close();
             }

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

@@ -2,6 +2,7 @@ package stirling.software.SPDF.controller.api.security;
 
 import java.io.IOException;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.cos.COSDictionary;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
@@ -52,7 +53,7 @@ public class SanitizeController {
         boolean removeLinks = request.isRemoveLinks();
         boolean removeFonts = request.isRemoveFonts();
 
-        try (PDDocument document = PDDocument.load(inputFile.getInputStream())) {
+        try (PDDocument document = Loader.loadPDF(inputFile.getBytes())) {
             if (removeJavaScript) {
                 sanitizeJavaScript(document);
             }

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

@@ -10,12 +10,14 @@ import java.io.InputStream;
 import javax.imageio.ImageIO;
 
 import org.apache.commons.io.IOUtils;
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
 import org.apache.pdfbox.pdmodel.font.PDFont;
 import org.apache.pdfbox.pdmodel.font.PDType0Font;
 import org.apache.pdfbox.pdmodel.font.PDType1Font;
+import org.apache.pdfbox.pdmodel.font.Standard14Fonts;
 import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
 import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
 import org.apache.pdfbox.pdmodel.graphics.state.PDExtendedGraphicsState;
@@ -58,7 +60,7 @@ public class WatermarkController {
         int heightSpacer = request.getHeightSpacer();
 
         // Load the input PDF
-        PDDocument document = PDDocument.load(pdfFile.getInputStream());
+        PDDocument document = Loader.loadPDF(pdfFile.getBytes());
 
         // Create a page in the document
         for (PDPage page : document.getPages()) {
@@ -66,7 +68,7 @@ public class WatermarkController {
             // Get the page's content stream
             PDPageContentStream contentStream =
                     new PDPageContentStream(
-                            document, page, PDPageContentStream.AppendMode.APPEND, true);
+                            document, page, PDPageContentStream.AppendMode.APPEND, true, true);
 
             // Set transparency
             PDExtendedGraphicsState graphicsState = new PDExtendedGraphicsState();
@@ -117,7 +119,7 @@ public class WatermarkController {
             String alphabet)
             throws IOException {
         String resourceDir = "";
-        PDFont font = PDType1Font.HELVETICA_BOLD;
+        PDFont font = new PDType1Font(Standard14Fonts.FontName.HELVETICA);
         switch (alphabet) {
             case "arabic":
                 resourceDir = "static/fonts/NotoSansArabic-Regular.ttf";

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

@@ -1,5 +1,6 @@
 package stirling.software.SPDF.controller.web;
 
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -12,6 +13,22 @@ import io.swagger.v3.oas.annotations.tags.Tag;
 @Tag(name = "Convert", description = "Convert APIs")
 public class ConverterWebController {
 
+    @ConditionalOnExpression("#{bookFormatsInstalled}")
+    @GetMapping("/book-to-pdf")
+    @Hidden
+    public String convertBookToPdfForm(Model model) {
+        model.addAttribute("currentPage", "book-to-pdf");
+        return "convert/book-to-pdf";
+    }
+
+    @ConditionalOnExpression("#{bookFormatsInstalled}")
+    @GetMapping("/pdf-to-book")
+    @Hidden
+    public String convertPdfToBookForm(Model model) {
+        model.addAttribute("currentPage", "pdf-to-book");
+        return "convert/pdf-to-book";
+    }
+
     @GetMapping("/img-to-pdf")
     @Hidden
     public String convertImgToPdfForm(Model model) {

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

@@ -1,7 +1,8 @@
 package stirling.software.SPDF.controller.web;
 
 import java.io.IOException;
-import java.nio.file.Files;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Map;
 
@@ -38,7 +39,8 @@ public class HomeWebController {
         model.addAttribute("currentPage", "licenses");
         Resource resource = new ClassPathResource("static/3rdPartyLicenses.json");
         try {
-            String json = new String(Files.readAllBytes(resource.getFile().toPath()));
+            InputStream is = resource.getInputStream();
+            String json = new String(is.readAllBytes(), StandardCharsets.UTF_8);
             ObjectMapper mapper = new ObjectMapper();
             Map<String, List<Dependency>> data =
                     mapper.readValue(json, new TypeReference<Map<String, List<Dependency>>>() {});

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

@@ -210,6 +210,7 @@ public class ApplicationProperties {
         private String rootURIPath;
         private String customStaticFilePath;
         private Integer maxFileSize;
+        private CustomApplications customApplications;
 
         private Boolean enableAlphaFunctionality;
 
@@ -261,6 +262,14 @@ public class ApplicationProperties {
             this.maxFileSize = maxFileSize;
         }
 
+        public CustomApplications getCustomApplications() {
+            return customApplications != null ? customApplications : new CustomApplications();
+        }
+
+        public void setCustomApplications(CustomApplications customApplications) {
+            this.customApplications = customApplications;
+        }
+
         @Override
         public String toString() {
             return "System [defaultLocale="
@@ -273,10 +282,42 @@ public class ApplicationProperties {
                     + customStaticFilePath
                     + ", maxFileSize="
                     + maxFileSize
+                    + ", customApplications="
+                    + customApplications
                     + ", enableAlphaFunctionality="
                     + enableAlphaFunctionality
                     + "]";
         }
+
+        public static class CustomApplications {
+            private boolean installBookFormats;
+            private boolean installAdvancedHtmlToPDF;
+
+            public boolean isInstallBookFormats() {
+                return installBookFormats;
+            }
+
+            public void setInstallBookFormats(boolean installBookFormats) {
+                this.installBookFormats = installBookFormats;
+            }
+
+            public boolean isInstallAdvancedHtmlToPDF() {
+                return installAdvancedHtmlToPDF;
+            }
+
+            public void setInstallAdvancedHtmlToPDF(boolean installAdvancedHtmlToPDF) {
+                this.installAdvancedHtmlToPDF = installAdvancedHtmlToPDF;
+            }
+
+            @Override
+            public String toString() {
+                return "CustomApplications [installBookFormats="
+                        + installBookFormats
+                        + ", installAdvancedHtmlToPDF="
+                        + installAdvancedHtmlToPDF
+                        + "]";
+            }
+        }
     }
 
     public static class Ui {

src/main/java/stirling/software/SPDF/model/api/PDFWithPageNums.java

@@ -3,6 +3,7 @@ package stirling.software.SPDF.model.api;
 import java.io.IOException;
 import java.util.List;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 
 import io.swagger.v3.oas.annotations.Hidden;
@@ -27,7 +28,7 @@ public class PDFWithPageNums extends PDFFile {
     public List<Integer> getPageNumbersList() {
         int pageCount = 0;
         try {
-            pageCount = PDDocument.load(getFileInput().getInputStream()).getNumberOfPages();
+            pageCount = Loader.loadPDF(getFileInput().getBytes()).getNumberOfPages();
         } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();

src/main/java/stirling/software/SPDF/model/api/converters/PdfToBookRequest.java

@@ -0,0 +1,19 @@
+package stirling.software.SPDF.model.api.converters;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import stirling.software.SPDF.model.api.PDFFile;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class PdfToBookRequest extends PDFFile {
+
+    @Schema(
+            description = "The output Ebook format",
+            allowableValues = {
+                "epub", "mobi", "azw3", "docx", "rtf", "txt", "html", "lit", "fb2", "pdb", "lrf"
+            })
+    private String outputFormat;
+}

src/main/java/stirling/software/SPDF/model/api/user/UpdateUserDetails.java

@@ -0,0 +1,16 @@
+package stirling.software.SPDF.model.api.user;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = true)
+public class UpdateUserDetails extends UpdateUserUsername {
+
+    @Schema(description = "new password for user")
+    private String newPassword;
+}

src/main/java/stirling/software/SPDF/model/api/user/UpdateUserUsername.java

@@ -0,0 +1,16 @@
+package stirling.software.SPDF.model.api.user;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = true)
+public class UpdateUserUsername extends UsernameAndPass {
+
+    @Schema(description = "new password for user")
+    private String newUsername;
+}

src/main/java/stirling/software/SPDF/model/api/user/Username.java

@@ -0,0 +1,16 @@
+package stirling.software.SPDF.model.api.user;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+
+@Data
+@EqualsAndHashCode
+@NoArgsConstructor
+public class Username {
+
+    @Schema(description = "username of user")
+    private String username;
+}

src/main/java/stirling/software/SPDF/model/api/user/UsernameAndPass.java

@@ -0,0 +1,16 @@
+package stirling.software.SPDF.model.api.user;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = true)
+public class UsernameAndPass extends Username {
+
+    @Schema(description = "password of user")
+    private String password;
+}

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

@@ -14,7 +14,9 @@ import java.util.zip.ZipInputStream;
 import stirling.software.SPDF.utils.ProcessExecutor.ProcessExecutorResult;
 
 public class FileToPdf {
-    public static byte[] convertHtmlToPdf(byte[] fileBytes, String fileName)
+
+    public static byte[] convertHtmlToPdf(
+            byte[] fileBytes, String fileName, boolean htmlFormatsInstalled)
             throws IOException, InterruptedException {
 
         Path tempOutputFile = Files.createTempFile("output_", ".pdf");
@@ -29,11 +31,22 @@ public class FileToPdf {
             }
 
             List<String> command = new ArrayList<>();
-            command.add("weasyprint");
+            if (!htmlFormatsInstalled) {
+                command.add("weasyprint");
+            } else {
+                command.add("wkhtmltopdf");
+                command.add("--enable-local-file-access");
+            }
+
             command.add(tempInputFile.toString());
             command.add(tempOutputFile.toString());
             ProcessExecutorResult returnCode;
             if (fileName.endsWith(".zip")) {
+
+                if (htmlFormatsInstalled) {
+                    // command.add(1, "--allow");
+                    // command.add(2, tempInputFile.getParent().toString());
+                }
                 returnCode =
                         ProcessExecutor.getInstance(ProcessExecutor.Processes.WEASYPRINT)
                                 .runCommandWithOutputHandling(
@@ -97,4 +110,38 @@ public class FileToPdf {
             return htmlFiles.get(0);
         }
     }
+
+    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);
+        }
+    }
 }

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

@@ -19,6 +19,14 @@ import org.springframework.web.multipart.MultipartFile;
 
 public class GeneralUtils {
 
+    public static File convertMultipartFileToFile(MultipartFile multipartFile) throws IOException {
+        File tempFile = File.createTempFile("temp", null);
+        try (FileOutputStream os = new FileOutputStream(tempFile)) {
+            os.write(multipartFile.getBytes());
+        }
+        return tempFile;
+    }
+
     public static void deleteDirectory(Path path) throws IOException {
         Files.walkFileTree(
                 path,

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

@@ -2,7 +2,6 @@ package stirling.software.SPDF.utils;
 
 import java.awt.Graphics;
 import java.awt.image.BufferedImage;
-import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.List;
@@ -16,9 +15,11 @@ import javax.imageio.ImageWriteParam;
 import javax.imageio.ImageWriter;
 import javax.imageio.stream.ImageOutputStream;
 
+import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.graphics.image.JPEGFactory;
 import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
@@ -190,7 +191,7 @@ public class PdfUtils {
             int DPI,
             String filename)
             throws IOException, Exception {
-        try (PDDocument document = PDDocument.load(new ByteArrayInputStream(inputStream))) {
+        try (PDDocument document = Loader.loadPDF(inputStream)) {
             PDFRenderer pdfRenderer = new PDFRenderer(document);
             int pageCount = document.getNumberOfPages();
 
@@ -335,7 +336,8 @@ public class PdfUtils {
         float pageWidth = page.getMediaBox().getWidth();
         float pageHeight = page.getMediaBox().getHeight();
 
-        try (PDPageContentStream contentStream = new PDPageContentStream(doc, page)) {
+        try (PDPageContentStream contentStream =
+                new PDPageContentStream(doc, page, AppendMode.APPEND, true, true)) {
             if ("fillPage".equals(fitOption) || "fitDocumentToImage".equals(fitOption)) {
                 contentStream.drawImage(image, 0, 0, pageWidth, pageHeight);
             } else if ("maintainAspectRatio".equals(fitOption)) {
@@ -368,7 +370,7 @@ public class PdfUtils {
             byte[] pdfBytes, byte[] imageBytes, float x, float y, boolean everyPage)
             throws IOException {
 
-        PDDocument document = PDDocument.load(new ByteArrayInputStream(pdfBytes));
+        PDDocument document = Loader.loadPDF(pdfBytes);
 
         // Get the first page of the PDF
         int pages = document.getNumberOfPages();
@@ -376,7 +378,7 @@ public class PdfUtils {
             PDPage page = document.getPage(i);
             try (PDPageContentStream contentStream =
                     new PDPageContentStream(
-                            document, page, PDPageContentStream.AppendMode.APPEND, true)) {
+                            document, page, PDPageContentStream.AppendMode.APPEND, true, true)) {
                 // Create an image object from the image bytes
                 PDImageXObject image = PDImageXObject.createFromByteArray(document, imageBytes, "");
                 // Draw the image onto the page at the specified x and y coordinates

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

@@ -4,26 +4,39 @@ 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;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class ProcessExecutor {
 
+    private static final Logger logger = LoggerFactory.getLogger(ProcessExecutor.class);
+
     public enum Processes {
         LIBRE_OFFICE,
         OCR_MY_PDF,
         PYTHON_OPENCV,
         GHOSTSCRIPT,
-        WEASYPRINT
+        WEASYPRINT,
+        INSTALL_APP,
+        CALIBRE
     }
 
     private static final Map<Processes, ProcessExecutor> instances = new ConcurrentHashMap<>();
 
     public static ProcessExecutor getInstance(Processes processType) {
+        return getInstance(processType, true);
+    }
+
+    public static ProcessExecutor getInstance(Processes processType, boolean liveUpdates) {
         return instances.computeIfAbsent(
                 processType,
                 key -> {
@@ -34,15 +47,32 @@ public class ProcessExecutor {
                                 case PYTHON_OPENCV -> 8;
                                 case GHOSTSCRIPT -> 16;
                                 case WEASYPRINT -> 16;
+                                case INSTALL_APP -> 1;
+                                case CALIBRE -> 1;
                             };
-                    return new ProcessExecutor(semaphoreLimit);
+
+                    long timeoutMinutes =
+                            switch (key) {
+                                case LIBRE_OFFICE -> 30;
+                                case OCR_MY_PDF -> 30;
+                                case PYTHON_OPENCV -> 30;
+                                case GHOSTSCRIPT -> 5;
+                                case WEASYPRINT -> 30;
+                                case INSTALL_APP -> 60;
+                                case CALIBRE -> 30;
+                            };
+                    return new ProcessExecutor(semaphoreLimit, liveUpdates, timeoutMinutes);
                 });
     }
 
     private final Semaphore semaphore;
+    private final boolean liveUpdates;
+    private long timeoutDuration;
 
-    private ProcessExecutor(int semaphoreLimit) {
+    private ProcessExecutor(int semaphoreLimit, boolean liveUpdates, long timeout) {
         this.semaphore = new Semaphore(semaphoreLimit);
+        this.liveUpdates = liveUpdates;
+        this.timeoutDuration = timeout;
     }
 
     public ProcessExecutorResult runCommandWithOutputHandling(List<String> command)
@@ -52,12 +82,12 @@ public class ProcessExecutor {
 
     public ProcessExecutorResult runCommandWithOutputHandling(
             List<String> command, File workingDirectory) throws IOException, InterruptedException {
-        int exitCode = 1;
         String messages = "";
+        int exitCode = 1;
         semaphore.acquire();
         try {
 
-            System.out.print("Running command: " + String.join(" ", command));
+            logger.info("Running command: " + String.join(" ", command));
             ProcessBuilder processBuilder = new ProcessBuilder(command);
 
             // Use the working directory if it's set
@@ -81,7 +111,11 @@ public class ProcessExecutor {
                                     String line;
                                     while ((line = errorReader.readLine()) != null) {
                                         errorLines.add(line);
+                                        if (liveUpdates) logger.info(line);
                                     }
+                                } catch (InterruptedIOException e) {
+                                    logger.warn(
+                                            "Error reader thread was interrupted due to timeout.");
                                 } catch (IOException e) {
                                     e.printStackTrace();
                                 }
@@ -98,7 +132,11 @@ public class ProcessExecutor {
                                     String line;
                                     while ((line = outputReader.readLine()) != null) {
                                         outputLines.add(line);
+                                        if (liveUpdates) logger.info(line);
                                     }
+                                } catch (InterruptedIOException e) {
+                                    logger.warn(
+                                            "Error reader thread was interrupted due to timeout.");
                                 } catch (IOException e) {
                                     e.printStackTrace();
                                 }
@@ -108,29 +146,42 @@ public class ProcessExecutor {
             outputReaderThread.start();
 
             // Wait for the conversion process to complete
-            exitCode = process.waitFor();
+            boolean finished = process.waitFor(timeoutDuration, TimeUnit.MINUTES);
 
+            if (!finished) {
+                // Terminate the process
+                process.destroy();
+                // Interrupt the reader threads
+                errorReaderThread.interrupt();
+                outputReaderThread.interrupt();
+                throw new IOException("Process timeout exceeded.");
+            }
+            exitCode = process.exitValue();
             // Wait for the reader threads to finish
             errorReaderThread.join();
             outputReaderThread.join();
 
-            if (outputLines.size() > 0) {
+            if (!liveUpdates) {
-                String outputMessage = String.join("\n", outputLines);
+                if (outputLines.size() > 0) {
-                messages += outputMessage;
+                    String outputMessage = String.join("\n", outputLines);
-                System.out.println("Command output:\n" + outputMessage);
+                    messages += outputMessage;
-            }
+                    logger.info("Command output:\n" + outputMessage);
-
-            if (errorLines.size() > 0) {
-                String errorMessage = String.join("\n", errorLines);
-                messages += errorMessage;
-                System.out.println("Command error output:\n" + errorMessage);
-                if (exitCode != 0) {
-                    throw new IOException(
-                            "Command process failed with exit code "
-                                    + exitCode
-                                    + ". Error message: "
-                                    + errorMessage);
                 }
+
+                if (errorLines.size() > 0) {
+                    String errorMessage = String.join("\n", errorLines);
+                    messages += errorMessage;
+                    logger.warn("Command error output:\n" + errorMessage);
+                    if (exitCode != 0) {
+                        throw new IOException(
+                                "Command process failed with exit code "
+                                        + exitCode
+                                        + ". Error message: "
+                                        + errorMessage);
+                    }
+                }
+            } else if (exitCode != 0) {
+                throw new IOException("Command process failed with exit code " + exitCode);
             }
         } finally {
             semaphore.release();

src/main/resources/settings.yml.template

@@ -9,10 +9,14 @@ security:
   loginResetTimeMinutes : 120 # lock account for 2 hours after x attempts
   
 system:
+  
   defaultLocale: 'en-US' # Set the default language (e.g. 'de-DE', 'fr-FR', etc)
   googlevisibility: false # 'true' to allow Google visibility (via robots.txt), 'false' to disallow
   enableAlphaFunctionality: false # Set to enable functionality which might need more testing before it fully goes live (This feature might make no changes)
-
+  customApplications:
+    installBookFormats: false # Installs Calibre for book format conversion (For non docker it must be manually downloaded but will need to be true to show in UI)
+    installAdvancedHtmlToPDF: false # DO NOT USE EXTERNALLY, NOT SAFE! Install wkHtmlToPDF (For non docker it must be manually downloaded but will need to be true to show in UI)
+  
 #ui:
 #  appName: exampleAppName # Application's visible name
 #  homeDescription: I am a description # Short description or tagline shown on homepage.

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

@@ -356,22 +356,22 @@
         },
         {
             "moduleName": "org.apache.pdfbox:fontbox",
-            "moduleUrl": "http://pdfbox.apache.org/",
+            "moduleUrl": "https://pdfbox.apache.org",
-            "moduleVersion": "2.0.29",
+            "moduleVersion": "2.0.30",
             "moduleLicense": "Apache License, Version 2.0",
             "moduleLicenseUrl": "https://www.apache.org/licenses/LICENSE-2.0.txt"
         },
         {
             "moduleName": "org.apache.pdfbox:pdfbox",
-            "moduleUrl": "http://pdfbox.apache.org",
+            "moduleUrl": "https://pdfbox.apache.org",
-            "moduleVersion": "2.0.29",
+            "moduleVersion": "2.0.30",
             "moduleLicense": "Apache License, Version 2.0",
             "moduleLicenseUrl": "https://www.apache.org/licenses/LICENSE-2.0.txt"
         },
         {
             "moduleName": "org.apache.pdfbox:xmpbox",
-            "moduleUrl": "http://pdfbox.apache.org",
+            "moduleUrl": "https://pdfbox.apache.org",
-            "moduleVersion": "2.0.29",
+            "moduleVersion": "2.0.30",
             "moduleLicense": "Apache License, Version 2.0",
             "moduleLicenseUrl": "https://www.apache.org/licenses/LICENSE-2.0.txt"
         },

src/main/resources/static/images/book.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-book" viewBox="0 0 16 16">
+  <path d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783"/>
+</svg>

src/main/resources/static/js/multitool/PdfContainer.js

@@ -209,20 +209,21 @@ class PdfContainer {
 
     async exportPdf() {
         const pdfDoc = await PDFLib.PDFDocument.create();
-        for (var i=0; i<this.pagesContainer.childNodes.length; i++) {
+	    const pageContainers = this.pagesContainer.querySelectorAll('.page-container'); // Select all .page-container elements
-            const img = this.pagesContainer.childNodes[i].querySelector("img");
+	    for (var i = 0; i < pageContainers.length; i++) {
-            if (!img) continue;
+	        const img = pageContainers[i].querySelector("img"); // Find the img element within each .page-container
-            const pages = await pdfDoc.copyPages(img.doc, [img.pageIdx])
+	        if (!img) continue;
-            const page = pages[0];
+	        const pages = await pdfDoc.copyPages(img.doc, [img.pageIdx])
-
+	        const page = pages[0];
-            const rotation = img.style.rotate;
+	
-            if (rotation) {
+	        const rotation = img.style.rotate;
-                const rotationAngle = parseInt(rotation.replace(/[^\d-]/g, ''));
+	        if (rotation) {
-                page.setRotation(PDFLib.degrees(page.getRotation().angle + rotationAngle))
+	            const rotationAngle = parseInt(rotation.replace(/[^\d-]/g, ''));
-            }
+	            page.setRotation(PDFLib.degrees(page.getRotation().angle + rotationAngle))
-            
+	        }
-            pdfDoc.addPage(page);
+	        
-        }
+	        pdfDoc.addPage(page);
+	    }
         const pdfBytes = await pdfDoc.save();
         const pdfBlob = new Blob([pdfBytes], { type: 'application/pdf' });
         const url = URL.createObjectURL(pdfBlob);

src/main/resources/templates/change-creds.html

@@ -39,12 +39,12 @@
                         <h4 th:text="#{changeCreds.changeUserAndPassword}">Change Username and password</h4>
                         <form action="api/v1/user/change-username-and-password" method="post">
                             <div class="mb-3">
-                                <label for="newUsername" th:text="#{changeCreds.newUsername}">New Username</label>
+                                <label for="username" th:text="#{changeCreds.newUsername}">New Username</label>
-                                <input type="text" class="form-control" name="newUsername" id="newUsername" th:placeholder="${username}">
+                                <input type="text" class="form-control" name="username" id="username" th:placeholder="${username}">
                             </div>
                             <div class="mb-3">
-                                <label for="currentPassword" th:text="#{changeCreds.oldPassword}">Old Password</label>
+                                <label for="password" th:text="#{changeCreds.oldPassword}">Old Password</label>
-                                <input type="password" class="form-control" name="currentPassword" id="currentPasswordPassword"  th:placeholder="#{changeCreds.oldPassword}">
+                                <input type="password" class="form-control" name="password" id="password"  th:placeholder="#{changeCreds.oldPassword}">
                             </div>
                             <div class="mb-3">
                                 <label for="newPassword" th:text="#{changeCreds.newPassword}">New Password</label>

src/main/resources/templates/convert/book-to-pdf.html

@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html th:lang="${#locale.toString()}" th:lang-direction="#{language.direction}" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title=#{BookToPDF.title}, header=#{BookToPDF.header})}"></th:block>
+
+<body>
+    <th:block th:insert="~{fragments/common :: game}"></th:block>
+    <div id="page-container">
+        <div id="content-wrap">
+            <div th:insert="~{fragments/navbar.html :: navbar}"></div>
+            <br> <br>
+            <div class="container">
+                <div class="row justify-content-center">
+                    <div class="col-md-6">
+                        <h2 th:text="#{BookToPDF.header}"></h2>
+                        <form method="post" enctype="multipart/form-data" th:action="@{api/v1/convert/book/pdf}">
+                            <div th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false)}"></div>
+                            <br>
+                            <button type="submit" id="submitBtn" class="btn btn-primary" th:text="#{BookToPDF.submit}"></button>
+
+                        </form>
+                        <p class="mt-3" th:text="#{BookToPDF.help}"></p>
+                        <p class="mt-3" th:text="#{BookToPDF.credit}"></p>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <div th:insert="~{fragments/footer.html :: footer}"></div>
+    </div>
+</body>

src/main/resources/templates/convert/pdf-to-book.html

@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html th:lang="${#locale.toString()}"
+	th:lang-direction="#{language.direction}"
+	xmlns:th="http://www.thymeleaf.org">
+
+<th:block
+	th:insert="~{fragments/common :: head(title=#{PDFToBook.title}, header=#{PDFToBook.header})}"></th:block>
+
+<body>
+	<th:block th:insert="~{fragments/common :: game}"></th:block>
+	<div id="page-container">
+		<div id="content-wrap">
+			<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+			<br> <br>
+			<div class="container">
+				<div class="row justify-content-center">
+					<div class="col-md-6">
+						<h2 th:text="#{PDFToBook.header}"></h2>
+						<form method="post" enctype="multipart/form-data"
+							th:action="@{api/v1/convert/pdf/book}">
+							<div
+								th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false, accept='application/pdf')}"></div>
+
+							<div class="mb-3">
+								<label th:text="#{PDFToBook.selectText.1}"></label> <select
+									class="form-control" name="outputFormat">
+									<option value="epub">EPUB</option>
+									<option value="mobi">MOBI</option>
+									<option value="azw3">AZW3</option>
+									<option value="docx">DOCX</option>
+									<option value="rtf">RTF</option>
+									<option value="txt">TXT</option>
+									<option value="html">HTML</option>
+									<option value="lit">LIT</option>
+									<option value="fb2">FB2</option>
+									<option value="pdb">PDB</option>
+									<option value="lrf">LRF</option>
+								</select>
+
+							</div>
+							<br>
+							<button type="submit" id="submitBtn" class="btn btn-primary"
+								th:text="#{PDFToBook.submit}"></button>
+
+						</form>
+						<p class="mt-3" th:text="#{PDFToBook.help}"></p>
+						<p class="mt-3" th:text="#{PDFToBook.credit}"></p>
+					</div>
+				</div>
+			</div>
+		</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

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

@@ -77,6 +77,7 @@
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('html-to-pdf', 'images/html.svg', 'home.HTMLToPDF.title', 'home.HTMLToPDF.desc', 'HTMLToPDF.tags')}"></div>
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('url-to-pdf', 'images/url.svg', 'home.URLToPDF.title', 'home.URLToPDF.desc', 'URLToPDF.tags')}"></div>
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('markdown-to-pdf', 'images/markdown.svg', 'home.MarkdownToPDF.title', 'home.MarkdownToPDF.desc', 'MarkdownToPDF.tags')}"></div>
+                            <div th:replace="~{fragments/navbarEntry :: navbarEntry ('book-to-pdf', 'images/book.svg', 'home.BookToPDF.title', 'home.BookToPDF.desc', 'BookToPDF.tags')}"></div>
                             <hr class="dropdown-divider">
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-img', 'images/image.svg', 'home.pdfToImage.title', 'home.pdfToImage.desc', 'pdfToImage.tags')}"></div>
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-word', 'images/file-earmark-word.svg', 'home.PDFToWord.title', 'home.PDFToWord.desc', 'PDFToWord.tags')}"></div>
@@ -86,6 +87,7 @@
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-xml', 'images/filetype-xml.svg', 'home.PDFToXML.title', 'home.PDFToXML.desc', 'PDFToXML.tags')}"></div>
                             <div th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-pdfa', 'images/file-earmark-pdf.svg', 'home.pdfToPDFA.title', 'home.pdfToPDFA.desc', 'pdfToPDFA.tags')}"></div>
 							<div th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-csv', 'images/pdf-csv.svg', 'home.tableExtraxt.title', 'home.tableExtraxt.desc', 'pdfToPDFA.tags')}"></div>
+                        	<div th:replace="~{fragments/navbarEntry :: navbarEntry ('pdf-to-book', 'images/book.svg', 'home.PDFToBook.title', 'home.PDFToBook.desc', 'PDFToBook.tags')}"></div>
                         </div>
                     </li>
 

src/main/resources/templates/home.html

@@ -99,6 +99,8 @@
 				<div th:replace="~{fragments/card :: card(id='split-by-size-or-count', cardTitle=#{home.autoSizeSplitPDF.title}, cardText=#{home.autoSizeSplitPDF.desc}, cardLink='split-by-size-or-count', svgPath='images/layout-split.svg')}"></div>
                 <div th:replace="~{fragments/card :: card(id='overlay-pdf', cardTitle=#{home.overlay-pdfs.title}, cardText=#{home.overlay-pdfs.desc}, cardLink='overlay-pdf', svgPath='images/overlay.svg')}"></div>
                 <div th:replace="~{fragments/card :: card(id='split-pdf-by-sections', cardTitle=#{home.split-by-sections.title}, cardText=#{home.split-by-sections.desc}, cardLink='split-pdf-by-sections', svgPath='images/layout-split.svg')}"></div>
+                <div th:replace="~{fragments/card :: card(id='book-to-pdf', cardTitle=#{home.BookToPDF.title}, cardText=#{home.BookToPDF.desc}, cardLink='book-to-pdf', svgPath='images/book.svg')}"></div>
+                <div th:replace="~{fragments/card :: card(id='pdf-to-book', cardTitle=#{home.PDFToBook.title}, cardText=#{home.PDFToBook.desc}, cardLink='pdf-to-book', svgPath='images/book.svg')}"></div>