mirror of
https://github.com/Frooodle/Stirling-PDF.git
synced 2025-09-03 17:52:30 +02:00
pdf to img fix
This commit is contained in:
Anthony Stirling
parent
e896dfeaec
commit
dcaddb53ee
@ -1,9 +1,13 @@
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package stirling.software.SPDF.controller.converters;
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import java.io.File;
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import java.io.IOException;
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import org.apache.pdfbox.rendering.ImageType;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.core.io.ByteArrayResource;
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import org.springframework.core.io.Resource;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.MediaType;
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@ -44,16 +48,41 @@ public class ConvertImgPDFController {
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}
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@PostMapping("/pdf-to-img")
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public ResponseEntity<byte[]> convertToImage(@RequestParam("fileInput") MultipartFile file,
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@RequestParam("imageFormat") String imageFormat) throws IOException {
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public ResponseEntity<Resource> convertToImage(@RequestParam("fileInput") MultipartFile file,
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@RequestParam("imageFormat") String imageFormat,
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@RequestParam("singleOrMultiple") String singleOrMultiple,
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@RequestParam("colorType") String colorType) throws IOException {
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byte[] pdfBytes = file.getBytes();
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ImageType colorTypeResult = ImageType.RGB;
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if("greyscale".equals(colorType)) {
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colorTypeResult = ImageType.GRAY;
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} else if ("blackwhite".equals(colorType)) {
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colorTypeResult = ImageType.BINARY;
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}
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// returns bytes for image
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byte[] result = PdfUtils.convertFromPdf(pdfBytes, imageFormat.toLowerCase());
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HttpHeaders headers = new HttpHeaders();
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headers.setContentType(MediaType.parseMediaType(getMediaType(imageFormat)));
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headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
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ResponseEntity<byte[]> response = new ResponseEntity<>(result, headers, HttpStatus.OK);
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return response;
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boolean singleImage = singleOrMultiple.equals("single");
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byte[] result = null;
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try {
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result = PdfUtils.convertFromPdf(pdfBytes, imageFormat.toLowerCase(), colorTypeResult, singleImage);
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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if(singleImage) {
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HttpHeaders headers = new HttpHeaders();
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headers.setContentType(MediaType.parseMediaType(getMediaType(imageFormat)));
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headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
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ResponseEntity<Resource> response = new ResponseEntity<>(new ByteArrayResource(result), headers, HttpStatus.OK);
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return response;
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} else {
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ByteArrayResource resource = new ByteArrayResource(result);
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// return the Resource in the response
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return ResponseEntity.ok().header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=converted_documents.zip")
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.contentType(MediaType.APPLICATION_OCTET_STREAM).contentLength(resource.contentLength()).body(resource);
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}
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}
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private String getMediaType(String imageFormat) {
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@ -3,6 +3,8 @@ package stirling.software.SPDF.controller.security;
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import java.awt.Color;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.Map;
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import java.util.Map.Entry;
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import org.apache.pdfbox.pdmodel.PDDocument;
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import org.apache.pdfbox.pdmodel.PDDocumentInformation;
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@ -19,11 +21,13 @@ import org.springframework.http.MediaType;
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import org.springframework.http.ResponseEntity;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.ui.ModelMap;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.multipart.MultipartFile;
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import jakarta.servlet.http.HttpServletRequest;
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import stirling.software.SPDF.utils.PdfUtils;
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@Controller
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@ -34,25 +38,55 @@ public class MetadataController {
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model.addAttribute("currentPage", "change-metadata");
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return "security/change-metadata";
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}
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@PostMapping("/update-metadata")
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public ResponseEntity<byte[]> addWatermark(@RequestParam("pdfFile") MultipartFile pdfFile,
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@RequestParam("author") String author) throws IOException {
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// Load the PDF file
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PDDocument document = PDDocument.load(pdfFile.getBytes());
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// Remove all metadata based on flag
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PDDocumentInformation info = document.getDocumentInformation();
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for (String key : info.getMetadataKeys()) {
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info.setCustomMetadataValue(key, null);
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}
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return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_metadata.pdf");
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public ResponseEntity<byte[]> metadata(
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@RequestParam Map<String,String> allRequestParams) throws IOException {
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System.out.println("1 allRequestParams.size() = " + allRequestParams.size());
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for(Entry entry : allRequestParams.entrySet()) {
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System.out.println("1 key=" + entry.getKey() + ", value=" + entry.getValue());
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}
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return null;
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}
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// @PostMapping("/update-metadata")
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// public ResponseEntity<byte[]> addWatermark(@RequestParam("fileInput") MultipartFile pdfFile,
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// @RequestParam Map<String,String> allRequestParams,HttpServletRequest request, ModelMap model) throws IOException {
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// // Load the PDF file
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// System.out.println("1 allRequestParams.size() = " + allRequestParams.size());
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// for(Entry entry : allRequestParams.entrySet()) {
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// System.out.println("1 key=" + entry.getKey() + ", value=" + entry.getValue());
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// }
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//
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//
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// System.out.println("request.getParameterMap().size() = " + request.getParameterMap().size());
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// for(Entry entry : request.getParameterMap().entrySet()) {
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// System.out.println("2 key=" + entry.getKey() + ", value=" + entry.getValue());
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// }
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//
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//
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// System.out.println("mdoel.size() = " + model.size());
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// for(Entry entry : model.entrySet()) {
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// System.out.println("3 key=" + entry.getKey() + ", value=" + entry.getValue());
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// }
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//
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// PDDocument document = PDDocument.load(pdfFile.getBytes());
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//
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//
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// // Remove all metadata based on flag
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// PDDocumentInformation info = document.getDocumentInformation();
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// for (String key : info.getMetadataKeys()) {
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// info.setCustomMetadataValue(key, null);
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// }
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//
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//
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//
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//
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// return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_metadata.pdf");
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// }
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// // Loop over all pages and remove annotations
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@ -1,5 +1,6 @@
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package stirling.software.SPDF.utils;
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import java.awt.Graphics;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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@ -7,19 +8,22 @@ import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.List;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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import javax.imageio.IIOImage;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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import org.apache.pdfbox.pdmodel.PDDocument;
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import org.apache.pdfbox.pdmodel.PDPage;
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import org.apache.pdfbox.pdmodel.PDPageContentStream;
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import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
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import org.apache.pdfbox.rendering.ImageType;
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import org.apache.pdfbox.rendering.PDFRenderer;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.http.HttpHeaders;
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@ -76,27 +80,55 @@ public class PdfUtils {
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}
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}
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public static byte[] convertFromPdf(byte[] inputStream, String imageType) throws IOException {
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try (PDDocument document = PDDocument.load(new ByteArrayInputStream(inputStream))) {
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// Create a PDFRenderer to convert the PDF to an image
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PDFRenderer pdfRenderer = new PDFRenderer(document);
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BufferedImage bim = pdfRenderer.renderImageWithDPI(0, 300, ImageType.RGB);
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public static byte[] convertFromPdf(byte[] inputStream, String imageType, ImageType colorType, boolean singleImage) throws IOException, Exception {
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try (PDDocument document = PDDocument.load(new ByteArrayInputStream(inputStream))) {
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PDFRenderer pdfRenderer = new PDFRenderer(document);
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int pageCount = document.getNumberOfPages();
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List<BufferedImage> images = new ArrayList<>();
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// Create images of all pages
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for (int i = 0; i < pageCount; i++) {
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images.add(pdfRenderer.renderImageWithDPI(i, 300, colorType));
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}
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// Get an ImageWriter for the specified image type
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Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName(imageType);
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ImageWriter writer = writers.next();
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if (singleImage) {
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// Combine all images into a single big image
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BufferedImage combined = new BufferedImage(images.get(0).getWidth() ,
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images.get(0).getHeight()* pageCount, BufferedImage.TYPE_INT_RGB);
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Graphics g = combined.getGraphics();
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for (int i = 0; i < images.size(); i++) {
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g.drawImage(images.get(i), 0, i * images.get(0).getHeight(), null);
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}
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images = Arrays.asList(combined);
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}
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// Create a ByteArrayOutputStream to save the image to
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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try (ImageOutputStream ios = ImageIO.createImageOutputStream(baos)) {
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writer.setOutput(ios);
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// Write the image to the output stream
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writer.write(new IIOImage(bim, null, null));
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// Log that the image was successfully written to the byte array
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logger.info("Image successfully written to byte array");
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}
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return baos.toByteArray();
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} catch (IOException e) {
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// Create a ByteArrayOutputStream to save the image(s) to
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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if (singleImage) {
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// Write the image to the output stream
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ImageIO.write(images.get(0), "PNG", baos);
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// Log that the image was successfully written to the byte array
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logger.info("Image successfully written to byte array");
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} else {
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// Zip the images and return as byte array
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try (ZipOutputStream zos = new ZipOutputStream(baos)) {
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for (int i = 0; i < images.size(); i++) {
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BufferedImage image = images.get(i);
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try (ByteArrayOutputStream baosImage = new ByteArrayOutputStream()) {
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ImageIO.write(image, "PNG", baosImage);
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// Add the image to the zip file
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zos.putNextEntry(new ZipEntry(String.format("page_%d.%s", i + 1, "png")));
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zos.write(baosImage.toByteArray());
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}
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}
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// Log that the images were successfully written to the byte array
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logger.info("Images successfully written to byte array as a zip");
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}
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}
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return baos.toByteArray();
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} catch (IOException e) {
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// Log an error message if there is an issue converting the PDF to an image
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logger.error("Error converting PDF to image", e);
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throw e;
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@ -129,6 +129,13 @@ imageToPDF.submit=تحول
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pdfToImage.title=تحويل PDF إلى صورة
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pdfToImage.header=تحويل PDF إلى صورة
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pdfToImage.selectText=تنسيق الصورة
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pdfToImage.singleOrMultiple = \u0646\u0648\u0639 \u0646\u062A\u064A\u062C\u0629 \u0627\u0644\u0635\u0648\u0631\u0629
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pdfToImage.single = \u0635\u0648\u0631\u0629 \u0648\u0627\u062D\u062F\u0629 \u0643\u0628\u064A\u0631\u0629
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pdfToImage.multi = \u0635\u0648\u0631 \u0645\u062A\u0639\u062F\u062F\u0629
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pdfToImage.colorType = \u0646\u0648\u0639 \u0627\u0644\u0644\u0648\u0646
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pdfToImage.color = \u0627\u0644\u0644\u0648\u0646
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pdfToImage.grey = \u062A\u062F\u0631\u062C \u0627\u0644\u0631\u0645\u0627\u062F\u064A
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pdfToImage.blackwhite = \u0623\u0628\u064A\u0636 \u0648\u0623\u0633\u0648\u062F (\u0642\u062F \u064A\u0641\u0642\u062F \u0627\u0644\u0628\u064A\u0627\u0646\u0627\u062A!)
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pdfToImage.submit=تحول
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#addPassword
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@ -126,6 +126,13 @@ imageToPDF.submit=Umwandeln
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pdfToImage.title=PDF zu Bild
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pdfToImage.header=PDF zu Bild
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pdfToImage.selectText=Bildformat
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pdfToImage.singleOrMultiple=Bildergebnistyp
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pdfToImage.single=Einzelnes großes Bild
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pdfToImage.multi=Mehrere Bilder
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pdfToImage.colorType=Farbtyp
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pdfToImage.color=Farbe
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pdfToImage.grey=Graustufen
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pdfToImage.blackwhite=Schwarzweiß (Datenverlust möglich!)
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pdfToImage.submit=Umwandeln
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#addPassword
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@ -124,6 +124,13 @@ imageToPDF.submit=Convert
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pdfToImage.title=PDF to Image
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pdfToImage.header=PDF to Image
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pdfToImage.selectText=Image Format
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pdfToImage.singleOrMultiple=Image result type
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pdfToImage.single=Single Big Image
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pdfToImage.multi=Multiple Images
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pdfToImage.colorType=Colour type
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pdfToImage.color=Colour
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pdfToImage.grey=Greyscale
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pdfToImage.blackwhite=Black and White (May lose data!)
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pdfToImage.submit=Convert
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#addPassword
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@ -127,8 +127,16 @@ imageToPDF.submit=Convert
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pdfToImage.title=PDF to Image
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pdfToImage.header=PDF to Image
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pdfToImage.selectText=Image Format
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pdfToImage.singleOrMultiple=Image result type
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pdfToImage.single=Single Big Image
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pdfToImage.multi=Multiple Images
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pdfToImage.colorType=Color type
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pdfToImage.color=Color
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pdfToImage.grey=Grayscale
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pdfToImage.blackwhite=Black and White (May lose data!)
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pdfToImage.submit=Convert
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#addPassword
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addPassword.title=Add Password
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addPassword.header=Add password (Encrypt)
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@ -129,6 +129,13 @@ imageToPDF.submit=Convertir
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pdfToImage.title=PDF vers image
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pdfToImage.header=PDF vers image
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pdfToImage.selectText=Format d'image
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pdfToImage.singleOrMultiple=Type de résultat d'image
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pdfToImage.single=Une seule grande image
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pdfToImage.multi=Plusieurs images
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pdfToImage.colorType=Type de couleur
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pdfToImage.color=Couleur
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pdfToImage.grey=Niveaux de gris
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pdfToImage.blackwhite=Noir et Blanc (Peut perdre des données !)
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pdfToImage.submit=Convertir
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#addPassword
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@ -14,24 +14,39 @@
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<div class="row justify-content-center">
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<div class="col-md-6">
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<h2 th:text="#{pdfToImage.header}"></h2>
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<p th:text="#{processTimeWarning}"></p>
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<form method="post" enctype="multipart/form-data"
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th:action="@{pdf-to-img}">
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<div th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false)}"></div>
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<div class="form-group">
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<label th:text="#{pdfToImage.selectText}"></label> <select class="form-control"
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name="imageFormat">
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<option value="jpg">JPEG</option>
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<option value="png">PNG</option>
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<option value="gif">GIF</option>
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</select>
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</div>
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<div class="form-group">
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<label th:text="#{pdfToImage.singleOrMultiple}"></label>
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<select class="form-control" name="singleOrMultiple">
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<option value="single" th:text="#{pdfToImage.single}"></option>
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<option value="multiple" th:text="#{pdfToImage.multi}"></option>
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</select>
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</div>
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<div class="form-group">
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<label th:text="#{pdfToImage.colorType}"></label>
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<select class="form-control" name="colorType">
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<option value="color" th:text="#{pdfToImage.color}"></option>
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<option value="greyscale" th:text="#{pdfToImage.grey}"></option>
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<option value="blackwhite" th:text="#{pdfToImage.blackwhite}"></option>
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</select>
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</div>
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<button type="submit" class="btn btn-primary" th:text="#{pdfToImage.submit}"></button>
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</form>
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<th:block th:insert="~{fragments/common :: filelist}"></th:block>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div th:insert="~{fragments/footer.html :: footer}"></div>
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</div>
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@ -14,25 +14,21 @@
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<h2 th:text="#{changeMetadata.header}"></h2>
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<form method="post" enctype="multipart/form-data" th:action="@{/update-metadata}">
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<div class="form-group">
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<label for="pdfFile">PDF File:</label>
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<input type="file" id="pdfFile" name="pdfFile"/>
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</div>
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<div th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false)}"></div>
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<p class="text-muted">Please select the variables you wish to change</p>
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<div class="form-group">
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<label for="advancedMode">Delete all metadata</label>
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<div class="form-group form-check form-check-inline">
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<input type="checkbox" class="form-check-input" id="deleteAll">
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<label class="ml-3" for="deleteAll">Delete all metadata</label>
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</div>
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<div class="form-group">
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<label for="advancedMode">Show Advanced Metadata:</label>
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<input type="checkbox" class="form-check-input" id="advancedMode">
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||||
<div class="form-group form-check form-check-inline">
|
||||
<input type="checkbox" class="form-check-input" id="advancedModeCheckbox">
|
||||
<label class="ml-3" for="advancedModeCheckbox">Show Advanced Metadata:</label>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="form-group form-check">
|
||||
<label class="form-check-label" for="author">Author:</label>
|
||||
<input type="text" class="form-control" id="author">
|
||||
@ -69,12 +65,12 @@
|
||||
</div>
|
||||
|
||||
<div class="form-group form-check">
|
||||
<label class="form-check-label" for="title">Subject:</label>
|
||||
<label class="form-check-label" for="title">Title:</label>
|
||||
<input type="text" class="form-control" id="title">
|
||||
</div>
|
||||
|
||||
<div class="form-group form-check">
|
||||
<label class="form-check-label" for="trapped">Subject:</label>
|
||||
<label class="form-check-label" for="trapped">Trapped:</label>
|
||||
<input type="text" class="form-control" id="trapped">
|
||||
</div>
|
||||
<div id="advancedMetadata" style="display:none;">
|
||||
@ -82,13 +78,13 @@
|
||||
<div class="form-group" id="otherMetadataEntries"></div>
|
||||
</div>
|
||||
<div id="customMetadataEntries"></div>
|
||||
<button type="button" id="addMetadataBtn">Add Custom Metadata Entry</button>
|
||||
<button type="button" class="btn btn-secondary" id="addMetadataBtn">Add Custom Metadata Entry</button>
|
||||
<br><br>
|
||||
<button type="submit">Save Changes and Download PDF</button>
|
||||
<button class="btn btn-primary" type="submit">Save Changes and Download PDF</button>
|
||||
<script>
|
||||
|
||||
|
||||
const advancedModeCheckbox = document.getElementById('advancedMode');
|
||||
const advancedModeCheckbox = document.getElementById('advancedModeCheckbox');
|
||||
const advancedMetadataDiv = document.getElementById('advancedMetadata');
|
||||
const otherMetadataEntriesDiv = document.getElementById('otherMetadataEntries');
|
||||
|
||||
@ -113,23 +109,9 @@
|
||||
customMetadataFormContainer.appendChild(valueInput);
|
||||
});
|
||||
|
||||
// async function addCustomMetadata(pdf, key, value) {
|
||||
// const pdfMetadata = pdf.getMetadata();
|
||||
// pdfMetadata.then((metadata) => {
|
||||
// metadata[key] = value;
|
||||
// pdf.setMetadata(metadata).then(() => {
|
||||
// console.log(`Successfully added custom metadata with key '${key}' and value '${value}'`);
|
||||
// }).catch((err) => {
|
||||
// console.error(`Error adding custom metadata: ${err}`);
|
||||
// });
|
||||
// });
|
||||
//}
|
||||
|
||||
//const customMetadataEntries = customMetadataFormContainer.querySelectorAll("input[type='text']");
|
||||
//for (let i = 0; i < customMetadataEntries.length; i += 2) {
|
||||
|
||||
|
||||
const pdfFileInput = document.querySelector("#pdfFile");
|
||||
const fileInput = document.querySelector("#fileInput-input");
|
||||
const authorInput = document.querySelector("#author");
|
||||
const creationDateInput = document.querySelector("#creationDate");
|
||||
const creatorInput = document.querySelector("#creator");
|
||||
@ -141,7 +123,7 @@
|
||||
const trappedInput = document.querySelector("#trapped");
|
||||
|
||||
var lastPDFFileMeta = null;
|
||||
pdfFile.addEventListener("change", async function() {
|
||||
fileInput.addEventListener("change", async function() {
|
||||
const file = this.files[0];
|
||||
var url = URL.createObjectURL(file)
|
||||
|
||||
@ -161,39 +143,41 @@
|
||||
|
||||
addExtra();
|
||||
});
|
||||
|
||||
|
||||
|
||||
function addExtra() {
|
||||
const event = document.getElementById("advancedModeCheckbox");
|
||||
|
||||
|
||||
if (event.checked) {
|
||||
advancedMetadataDiv.style.display = 'block';
|
||||
for (const [key, value] of Object.entries(lastPDFFile)) {
|
||||
if (key === 'Author' || key === 'CreationDate' || key === 'Creator' || key === 'Keywords' || key === 'ModDate' || key === 'Producer' || key === 'Subject' || key === 'Title' || key === 'Trapped') {
|
||||
continue;
|
||||
}
|
||||
const entryDiv = document.createElement('div');
|
||||
entryDiv.className = 'form-group';
|
||||
|
||||
|
||||
|
||||
entryDiv.innerHTML = `<div class="form-group form-check"><label class="form-check-label" for="${key}">${key}:</label><input value="${value}" type="text" class="form-control" id="${key}"></div>`;
|
||||
otherMetadataEntriesDiv.appendChild(entryDiv);
|
||||
}
|
||||
} else {
|
||||
advancedMetadataDiv.style.display = 'none';
|
||||
while (otherMetadataEntriesDiv.firstChild) {
|
||||
otherMetadataEntriesDiv.removeChild(otherMetadataEntriesDiv.firstChild);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
advancedModeCheckbox.addEventListener('change', (event) => {
|
||||
|
||||
addExtra();
|
||||
});
|
||||
|
||||
|
||||
function addExtra() {
|
||||
const event = document.getElementById("advancedModeCheckbox");
|
||||
|
||||
|
||||
if (event.target.checked) {
|
||||
advancedMetadataDiv.style.display = 'block';
|
||||
for (const [key, value] of Object.entries(pdfMetadata.info)) {
|
||||
if (key === 'Author' || key === 'CreationDate' || key === 'Creator' || key === 'Keywords' || key === 'ModDate' || key === 'Producer' || key === 'Subject' || key === 'Title' || key === 'Trapped') {
|
||||
continue;
|
||||
}
|
||||
const entryDiv = document.createElement('div');
|
||||
entryDiv.className = 'form-group';
|
||||
entryDiv.innerHTML = `<label for="${key}">${key}:</label><input type="text" id="${key}" value="${value}" disabled>`;
|
||||
otherMetadataEntriesDiv.appendChild(entryDiv);
|
||||
}
|
||||
} else {
|
||||
advancedMetadataDiv.style.display = 'none';
|
||||
while (otherMetadataEntriesDiv.firstChild) {
|
||||
otherMetadataEntriesDiv.removeChild(otherMetadataEntriesDiv.firstChild);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
</script>
|
||||
</form>
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user