Hi all,
Does anyone see something obvious I'm missing in this code that could cause
a COSStream error when trying to save a document? I basically have an
(ascending) list of page numbers that I want to delete from a document, so
I'm doing it in a reverse loop, but it errors out on the save command.
Here's the relevant code:
if (pagesToDelete.isEmpty()==false) {
for (int i=pagesToDelete.size()-1; i>=0; i--) {
System.out.println("Removing page: "+pagesToDelete.get(i));
mergedDoc.removePage(pagesToDelete.get(i));
}
mergedDoc.save(new File(mergedFilePath.replace(".pdf", "_edited.pdf")));
}
mergedDoc.close();
And the error stack:
Exception in thread "main" java.io.IOException: COSStream has been closed
and cannot be read. Perhaps its enclosing PDDocument has been closed?
at org.apache.pdfbox.cos.COSStream.checkClosed(COSStream.java:83)
at org.apache.pdfbox.cos.COSStream.createRawInputStream(COSStream.java:133)
at
org.apache.pdfbox.pdfwriter.COSWriter.visitFromStream(COSWriter.java:1219)
at org.apache.pdfbox.cos.COSStream.accept(COSStream.java:404)
at org.apache.pdfbox.cos.COSObject.accept(COSObject.java:158)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:526)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObjects(COSWriter.java:464)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:448)
at
org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1113)
at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:449)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1386)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1273)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1357)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1328)
at ***.main(***.java:79)
I can see the page numbers in the console and the output file is generated,
but is not legible.
Console output:
Removing page: 543
Removing page: 542
Removing page: 541
Removing page: 540
PDFBox version is 2.0.18. Java version is 1.8.0_25. OS is Windows 7.
PS. I'm getting the same result if I specify the parameter of removePage as
a PDPage object instead of an integer.
Thanks in advance!
Gilad
