Hi,
If this happened with 3.0.0 or 3.0.1 please retry with 3.0.2. If not,
then please find a non confidential file where that happens. Also make
sure that src and dst are different files.
Tilman
On 19.03.2024 15:26, Frédéric Ravetier wrote:
Hello,
I am trying to Flatten a PDF using PDFBox3 by doing :
private static void flattenPDF(String src, String dst) throws IOException {
PDDocument doc = Loader.loadPDF(new RandomAccessReadBufferedFile( src ));
PDDocumentCatalog catalog = doc.getDocumentCatalog();
PDAcroForm acroForm = catalog.getAcroForm();
if (acroForm == null){
logger.debug("This document does not contains any form,
nothing to do...");
}else {
acroForm.setNeedAppearances(false);
acroForm.flatten();// Flatten using pdfbox3
}
doc.save(dst);
doc.close();
}
It works but it creates in some cases a document that is not readable using
PDFBox 2 where I get this error:
java.io.IOException: COSObject{525, 0} cannot be assigned to offset
1528842, this belongs to COSObject{4196, 0}
at
org.apache.pdfbox.pdfparser.COSParser.parseDictObjects(COSParser.java:736)
at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:185)
at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:231)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1233)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1133)
With the following code :
System.out.printf("\n*\n* demo.pdf\n*\n");
try (
InputStream resource =
getClass().getResourceAsStream("/mkl/testarea/pdfbox2/extract/bad-annot-1.pdf")
) {
//OutputStream result = new FileOutputStream(new
File(RESULT_FOLDER, "bad-pdf-sign.pdf"));
PDDocument pdDocument = PDDocument.load(resource);
System.out.printf("Producer of document : %s\n",
pdDocument.getDocumentInformation().getProducer());
AccessPermission accessPermission =
pdDocument.getCurrentAccessPermission();
if (accessPermission.isReadOnly()) {
System.out.printf("The document cannot be modified (read-only)");
}
if (!accessPermission.canModify()) {
System.out.printf("Cannot modify the document");
}
if (!accessPermission.canModifyAnnotations()) {
System.out.printf("Cannot modify the annotation");
}
if (!accessPermission.canFillInForm()) {
System.out.printf("Cannot fill in form");
}
}
Do you have any ideas why ?
I can not share the document (confidential) :(
Best regards,
Fred
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