yanpas / pdfmerger Goto Github PK

Hello,
If the output PDF file is larger than 150MB, the merge will fail.
A cancel dialog box pops up on the screen.
But I have to work with such a large PDF.

please help me.

sincerely
Jane

sriperumbudur12.pdf
sriperumbudur12Supple.pdf

Trying to merge the two attached PDFs with

java -jar pdfmerger.jar sriperumbudur12.pdf sriperumbudur12Supple.pdf out.pdf

I get:

Processing sriperumbudur12.pdf
Processing sriperumbudur12Supple.pdf
File "sriperumbudur12Supple.pdf" seems to be non-pdf
java.io.IOException: File "sriperumbudur12Supple.pdf" seems to be non-pdf
        at yanpas.pdfmerger.Merger.appendDoc(Merger.java:42)
        at yanpas.pdfmerger.Merger.addDocument(Merger.java:69)
        at yanpas.pdfmerger.PdfMerger.main(PdfMerger.java:33)

but sriperumbudur12Supple.pdf is a valid PDF file, as you can assure yourself by opening it in any viewer. At least my Acrobat Professional does not complain at all and displays it without problems.

Any hints?

Don't know how to say thank you without lunching a bug to do so, but cat'ing a bunch of PDFs while building an bookmark outline is something so simple and yet has been impossible to find!
Thank you
(PS I did find it quite difficult to follow the documentation to set up - I found myself reading the source to find the docs and pdfmerger executable in order to work out where to put and how to run the binary as intended.)

Attachment

choi17a.pdf

Description

Trying to merge the attached single PDF file (no need to add a second file to merge in order to demonstrate the issue) with:

java -jar pdfmerger-1.2.jar choi17a.pdf out.pdf

I get:

Error: Error: can't convert to Destination COSArray{[COSNull{}, COSFloat{0.0}, COSFloat{0.0}, COSFloat{1.0}]}
Stack trace:
java.io.IOException: Error: can't convert to Destination COSArray{[COSNull{}, COSFloat{0.0}, COSFloat{0.0}, COSFloat{1.0}]}
        at org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDDestination.create(PDDestination.java:98)
        at org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline.PDOutlineItem.getDestination(PDOutlineItem.java:188)
        at org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline.PDOutlineItem.findDestinationPage(PDOutlineItem.java:230)
        at yanpas.pdfmerger.Merger.addOutlines(Merger.java:23)
        at yanpas.pdfmerger.Merger.appendDoc(Merger.java:62)
        at yanpas.pdfmerger.Merger.addDocument(Merger.java:68)
        at yanpas.pdfmerger.PdfMerger.main(PdfMerger.java:67)

This happens with both versions 1.0 and 1.2.

Reason

This is probably due to the fact the the PDF contains a bookmark, 'Choi_Appendix.pdf' that does not seem to be pointing anywhere - at least the viewers seems to ignore it.

Workaround

As a temporary fix (workaround), eliminate bookmarks with empty targets from the PDFs you want to merge. For example, this version of the PDF in question, without the nowhere-pointing bookmark, works flawlessly:

choi17a.pdf

Proposed solution

Ignore bookmarks that look invalid, instead of choking on them. Issue a warning, but add them nonetheless, possibly with an empty (or default, if 'empty' is not an option) target.