[PDFBOX-1595] PDFMerger failed with the following exception: java.lang.NullPointerException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.7, 2.0.0
• Fix Version/s: 1.8.8, 2.0.0
• Component/s: Utilities
• Labels: PDFMergerUtility
• Environment: Windows
• Assignee: Andreas Lehmkühler
• Reporter: Ernst Eibensteiner
• Created: 08/May/13 10:57
• Updated: 13/Dec/14 14:15
• Resolved: 30/Oct/14 21:37

Description

Merging 2 PDF documents leads to a null pointer exception:
From my point of view the PDF document misses the xref and startxref tag.

java -jar pdfbox-app-1.8.1.jar PDFMerger "bid.pdf" "2nd Testfile.pdf" output.pdf

Mai 08, 2013 12:52:03 PM org.apache.pdfbox.pdfparser.XrefTrailerResolver setTrailer
WARNING: Cannot add trailer because XRef start was not signalled.
Mai 08, 2013 12:52:03 PM org.apache.pdfbox.pdfparser.XrefTrailerResolver setStartxref
WARNING: Did not found XRef object at specified startxref position 0
PDFMerger failed with the following exception:
java.lang.NullPointerException
at org.apache.pdfbox.util.PDFMergerUtility.appendDocument(PDFMergerUtility.java:257)
at org.apache.pdfbox.util.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:188)
at org.apache.pdfbox.PDFMerger.merge(PDFMerger.java:68)
at org.apache.pdfbox.PDFMerger.main(PDFMerger.java:44)
at org.apache.pdfbox.PDFBox.main(PDFBox.java:83)