If it comes back, consider this source code comment:
// Tip for debugging: look at the destination file with an
editor, you'll see an
// incomplete stream at the bottom.
usually the dictionary part is already written, as are the parts
pointing to this stream. If the stream starts with 50 0 obj, look for 50
0 R.
Tilman
Am 28.01.2020 um 00:19 schrieb Gilad Denneboom:
I did some further testing and when I ran this code on its own it works
fine, so the issue might be something else I'm doing in my code, so please
ignore for now...
On Mon, Jan 27, 2020 at 11:44 PM Gilad Denneboom <gilad.denneb...@gmail.com>
wrote:
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
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