Mirrors/Stirling-PDF
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itext removal fixes

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This commit is contained in:
Anthony Stirling 2023-09-02 19:12:08 +01:00
parent a7cd6bfd2e
commit 862086eae5
4 changed files with 91 additions and 61 deletions
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66
src/main/java/stirling/software/SPDF/controller/api/ToSinglePageController.java
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@ -1,12 +1,15 @@
package stirling.software.SPDF.controller.api;
import java.awt.geom.AffineTransform;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.common.PDStream;
import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.slf4j.Logger;
@ -49,37 +52,50 @@ public class ToSinglePageController {
@Parameter(description = "The input multi-page PDF file to be converted into a single page", required = true)
MultipartFile file) throws IOException {
// Load the source document
PDDocument sourceDocument = PDDocument.load(file.getInputStream());
float totalHeight = 0;
float width = 0;
for (PDPage page : sourceDocument.getPages()) {
PDRectangle pageSize = page.getMediaBox();
totalHeight += pageSize.getHeight();
if(width < pageSize.getWidth())
width = pageSize.getWidth();
}
// Calculate total height and max width
float totalHeight = 0;
float maxWidth = 0;
for (PDPage page : sourceDocument.getPages()) {
PDRectangle pageSize = page.getMediaBox();
totalHeight += pageSize.getHeight();
maxWidth = Math.max(maxWidth, pageSize.getWidth());
}
PDDocument newDocument = new PDDocument();
PDPage newPage = new PDPage(new PDRectangle(width, totalHeight));
newDocument.addPage(newPage);
// Create new document and page with calculated dimensions
PDDocument newDocument = new PDDocument();
PDPage newPage = new PDPage(new PDRectangle(maxWidth, totalHeight));
newDocument.addPage(newPage);
LayerUtility layerUtility = new LayerUtility(newDocument);
float yOffset = totalHeight;
// Initialize the content stream of the new page
PDPageContentStream contentStream = new PDPageContentStream(newDocument, newPage);
contentStream.close();
LayerUtility layerUtility = new LayerUtility(newDocument);
float yOffset = totalHeight;
for (PDPage page : sourceDocument.getPages()) {
PDFormXObject form = layerUtility.importPageAsForm(sourceDocument, sourceDocument.getPages().indexOf(page));
AffineTransform af = AffineTransform.getTranslateInstance(0, yOffset - page.getMediaBox().getHeight());
layerUtility.appendFormAsLayer(newDocument.getPage(0), form, af, page.getResources().getCOSObject().toString());
yOffset -= page.getMediaBox().getHeight();
}
// For each page, copy its content to the new page at the correct offset
for (PDPage page : sourceDocument.getPages()) {
PDFormXObject form = layerUtility.importPageAsForm(sourceDocument, sourceDocument.getPages().indexOf(page));
AffineTransform af = AffineTransform.getTranslateInstance(0, yOffset - page.getMediaBox().getHeight());
layerUtility.wrapInSaveRestore(newPage);
String defaultLayerName = "Layer" + sourceDocument.getPages().indexOf(page);
layerUtility.appendFormAsLayer(newPage, form, af, defaultLayerName);
yOffset -= page.getMediaBox().getHeight();
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
newDocument.save(baos);
newDocument.close();
sourceDocument.close();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
newDocument.save(baos);
newDocument.close();
sourceDocument.close();
byte[] result = baos.toByteArray();
return WebResponseUtils.bytesToWebResponse(result, file.getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_singlePage.pdf");
byte[] result = baos.toByteArray();
return WebResponseUtils.bytesToWebResponse(result, file.getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_singlePage.pdf");
}
}

14
src/main/java/stirling/software/SPDF/controller/api/other/PageNumbersController.java
View File

@ -60,6 +60,11 @@ public class PageNumbersController {
case "large":
marginFactor = 0.05f;
break;
case "x-large":
marginFactor = 0.075f;
break;
default:
marginFactor = 0.035f;
break;
@ -67,7 +72,12 @@ public class PageNumbersController {
float fontSize = 12.0f;
PDType1Font font = PDType1Font.HELVETICA;
if(pagesToNumber == null || pagesToNumber.length() == 0) {
pagesToNumber = "all";
}
if(customText == null || customText.length() == 0) {
customText = "{n}";
}
List<Integer> pagesToNumberList = GeneralUtils.parsePageList(pagesToNumber.split(","), document.getNumberOfPages());
for (int i : pagesToNumberList) {
@ -120,7 +130,7 @@ public class PageNumbersController {
document.save(baos);
document.close();
return WebResponseUtils.bytesToWebResponse(baos.toByteArray(), URLEncoder.encode(file.getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_numbersAdded.pdf", "UTF-8"), MediaType.APPLICATION_PDF);
return WebResponseUtils.bytesToWebResponse(baos.toByteArray(), file.getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_numbersAdded.pdf", MediaType.APPLICATION_PDF);
}

30
src/main/java/stirling/software/SPDF/controller/api/other/ShowJavascript.java
View File

@ -28,20 +28,22 @@ public class ShowJavascript {
String script = "";
try (PDDocument document = PDDocument.load(inputFile.getInputStream())) {
PDNameTreeNode<PDActionJavaScript> jsTree = document.getDocumentCatalog().getNames().getJavaScript();
if (jsTree != null) {
Map<String, PDActionJavaScript> jsEntries = jsTree.getNames();
for (Map.Entry<String, PDActionJavaScript> entry : jsEntries.entrySet()) {
String name = entry.getKey();
PDActionJavaScript jsAction = entry.getValue();
String jsCodeStr = jsAction.getAction();
script += "// File: " + inputFile.getOriginalFilename() + ", Script: " + name + "\n" + jsCodeStr + "\n";
}
}
if(document.getDocumentCatalog() != null && document.getDocumentCatalog().getNames() != null) {
PDNameTreeNode<PDActionJavaScript> jsTree = document.getDocumentCatalog().getNames().getJavaScript();
if (jsTree != null) {
Map<String, PDActionJavaScript> jsEntries = jsTree.getNames();
for (Map.Entry<String, PDActionJavaScript> entry : jsEntries.entrySet()) {
String name = entry.getKey();
PDActionJavaScript jsAction = entry.getValue();
String jsCodeStr = jsAction.getAction();
script += "// File: " + inputFile.getOriginalFilename() + ", Script: " + name + "\n" + jsCodeStr + "\n";
}
}
}
if (script.isEmpty()) {
script = "PDF '" + inputFile.getOriginalFilename() + "' does not contain Javascript";

42
src/main/java/stirling/software/SPDF/controller/api/security/GetInfoOnPDF.java
View File

@ -185,24 +185,26 @@ public class GetInfoOnPDF {
//embeed files TODO size
PDEmbeddedFilesNameTreeNode efTree = catalog.getNames().getEmbeddedFiles();
ArrayNode embeddedFilesArray = objectMapper.createArrayNode();
if (efTree != null) {
Map<String, PDComplexFileSpecification> efMap = efTree.getNames();
if (efMap != null) {
for (Map.Entry<String, PDComplexFileSpecification> entry : efMap.entrySet()) {
ObjectNode embeddedFileNode = objectMapper.createObjectNode();
embeddedFileNode.put("Name", entry.getKey());
PDEmbeddedFile embeddedFile = entry.getValue().getEmbeddedFile();
if (embeddedFile != null) {
embeddedFileNode.put("FileSize", embeddedFile.getLength()); // size in bytes
}
embeddedFilesArray.add(embeddedFileNode);
}
}
if(catalog.getNames() != null) {
PDEmbeddedFilesNameTreeNode efTree = catalog.getNames().getEmbeddedFiles();
ArrayNode embeddedFilesArray = objectMapper.createArrayNode();
if (efTree != null) {
Map<String, PDComplexFileSpecification> efMap = efTree.getNames();
if (efMap != null) {
for (Map.Entry<String, PDComplexFileSpecification> entry : efMap.entrySet()) {
ObjectNode embeddedFileNode = objectMapper.createObjectNode();
embeddedFileNode.put("Name", entry.getKey());
PDEmbeddedFile embeddedFile = entry.getValue().getEmbeddedFile();
if (embeddedFile != null) {
embeddedFileNode.put("FileSize", embeddedFile.getLength()); // size in bytes
}
embeddedFilesArray.add(embeddedFileNode);
}
}
}
other.set("EmbeddedFiles", embeddedFilesArray);
}
other.set("EmbeddedFiles", embeddedFilesArray);
@ -374,7 +376,7 @@ public class GetInfoOnPDF {
ObjectNode pageInfoParent = objectMapper.createObjectNode();
for (int pageNum = 1; pageNum <= pdfBoxDoc.getNumberOfPages(); pageNum++) {
for (int pageNum = 0; pageNum < pdfBoxDoc.getNumberOfPages(); pageNum++) {
ObjectNode pageInfo = objectMapper.createObjectNode();
// Retrieve the page
@ -411,8 +413,8 @@ public class GetInfoOnPDF {
// Content Extraction
PDFTextStripper textStripper = new PDFTextStripper();
textStripper.setStartPage(pageNum -1);
textStripper.setEndPage(pageNum - 1);
textStripper.setStartPage(pageNum + 1);
textStripper.setEndPage(pageNum +1);
String pageText = textStripper.getText(pdfBoxDoc);
pageInfo.put("Text Characters Count", pageText.length()); //