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Lots of changes (#70)

Browse Source 
Image extraction and conversion to formats 

Multi parallel file execution for all forms so you can input multiple files quickly 

Any file at all pdf using libreoffice, super powerful
Sadly makes docker image larger but worth it 

OCR PDF using ocr my pdf
Works awesomely for adding text to a image

Improved compression using ocr my pdf app

Settings page with custom download options such as 
- open in same window
- open in new window
- download
- download as zip

Update detection in settings page it should show notification if there is a update (very hidden)

UI cleanups

Add other image formats to PDF to Image

Various fies to icons, and pdf.js usage
This commit is contained in:
Anthony Stirling
2023-03-20 21:55:11 +00:00
committed by GitHub
parent 54abb53842
commit a9145fe84c
54 changed files with 82327 additions and 8300 deletions
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12
src/main/java/stirling/software/SPDF/utils/PdfUtils.java
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@@ -32,7 +32,6 @@ import org.springframework.http.ResponseEntity;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.pdf.PdfWriter;
import com.spire.pdf.PdfDocument;
public class PdfUtils {
@@ -172,16 +171,7 @@ public class PdfUtils {
return PdfUtils.boasToWebResponse(baos, docName);
}
public static ResponseEntity<byte[]> pdfDocToWebResponse(PdfDocument document, String docName) throws IOException {
// Open Byte Array and save document to it
ByteArrayOutputStream baos = new ByteArrayOutputStream();
document.saveToStream(baos);
// Close the document
document.close();
return PdfUtils.boasToWebResponse(baos, docName);
}
public static ResponseEntity<byte[]> pdfDocToWebResponse(PDDocument document, String docName) throws IOException {

69
src/main/java/stirling/software/SPDF/utils/ProcessExecutor.java Normal file
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@@ -0,0 +1,69 @@
package stirling.software.SPDF.utils;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.Arrays;
import java.util.List;
import java.io.BufferedReader;
import java.util.ArrayList;
public class ProcessExecutor {
public static int runCommandWithOutputHandling(List<String> command) throws IOException, InterruptedException {
ProcessBuilder processBuilder = new ProcessBuilder(command);
Process process = processBuilder.start();
// Read the error stream and standard output stream concurrently
List<String> errorLines = new ArrayList<>();
List<String> outputLines = new ArrayList<>();
Thread errorReaderThread = new Thread(() -> {
try (BufferedReader errorReader = new BufferedReader(new InputStreamReader(process.getErrorStream(), StandardCharsets.UTF_8))) {
String line;
while ((line = errorReader.readLine()) != null) {
errorLines.add(line);
}
} catch (IOException e) {
e.printStackTrace();
}
});
Thread outputReaderThread = new Thread(() -> {
try (BufferedReader outputReader = new BufferedReader(new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8))) {
String line;
while ((line = outputReader.readLine()) != null) {
outputLines.add(line);
}
} catch (IOException e) {
e.printStackTrace();
}
});
errorReaderThread.start();
outputReaderThread.start();
// Wait for the conversion process to complete
int exitCode = process.waitFor();
// Wait for the reader threads to finish
errorReaderThread.join();
outputReaderThread.join();
if (outputLines.size() > 0) {
String outputMessage = String.join("\n", outputLines);
System.out.println("Command output:\n" + outputMessage);
}
if (errorLines.size() > 0) {
String errorMessage = String.join("\n", errorLines);
System.out.println("Command error output:\n" + errorMessage);
if (exitCode != 0) {
throw new IOException("Command process failed with exit code " + exitCode + ". Error message: " + errorMessage);
}
}
return exitCode;
}
}

69
src/main/java/stirling/software/SPDF/utils/WatermarkRemover.java Normal file
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@@ -0,0 +1,69 @@
package stirling.software.SPDF.utils;
import java.io.IOException;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.pdfbox.contentstream.PDFStreamEngine;
import org.apache.pdfbox.contentstream.operator.Operator;
import org.apache.pdfbox.cos.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSString;
public class WatermarkRemover extends PDFStreamEngine {
private final String watermarkText;
private final Pattern pattern;
public WatermarkRemover(String watermarkText) {
this.watermarkText = watermarkText;
this.pattern = Pattern.compile(Pattern.quote(watermarkText));
}
@Override
protected void processOperator(Operator operator, List<COSBase> operands) throws IOException {
String operation = operator.getName();
boolean processText = false;
if ("Tj".equals(operation) || "TJ".equals(operation) || "'".equals(operation) || "\"".equals(operation)) {
processText = true;
}
if (processText) {
for(int j = 0 ; j < operands.size(); ++j) {
COSBase operand = operands.get(j);
if (operand instanceof COSString) {
COSString cosString = (COSString) operand;
String string = cosString.getString();
Matcher matcher = pattern.matcher(string);
if (matcher.find()) {
string = matcher.replaceAll("");
cosString.setValue(string.getBytes());
}
} else if (operand instanceof COSArray) {
COSArray array = (COSArray) operand;
for (int i = 0; i < array.size(); i++) {
COSBase item = array.get(i);
if (item instanceof COSString) {
COSString cosString = (COSString) item;
String string = cosString.getString();
Matcher matcher = pattern.matcher(string);
if (matcher.find()) {
System.out.println("operation =" + operation);
System.out.println("1 =" + string);
string = matcher.replaceAll("");
cosString.setValue(string.getBytes());
array.set(i, cosString);
operands.set(j, array);
}
}
}
}
}
}
super.processOperator(operator, operands);
}
}