[PDFBOX-1241] Better handle of missing offset at the end of a file

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 1.8.3
• Component/s: Parsing, Text extraction
• Environment: All platforms affected
• Assignee: Unassigned
• Reporter: Ernst Eibensteiner
• Created: 29/Feb/12 08:13
• Updated: 23/Apr/14 17:24
• Resolved: 23/Apr/14 17:24

Description

We came across PDF files that do not have an offset at the end of the file.
This leads to the following exeption:

c:\tmp> java -jar pdfbox-app-1.6.0.jar ExtractText -endPage 1 "On the Insert tab.pdf"
ExtractText failed with the following exception:
java.io.IOException: Error: Expected an integer type, actual=''
at org.apache.pdfbox.pdfparser.BaseParser.readInt(BaseParser.java:1384)
at org.apache.pdfbox.pdfparser.PDFParser.parseStartXref(PDFParser.java:6
63)
at org.apache.pdfbox.pdfparser.PDFParser.parseObject(PDFParser.java:464)

at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:184)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1088)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1053)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:978)
at org.apache.pdfbox.ExtractText.startExtraction(ExtractText.java:196)
at org.apache.pdfbox.ExtractText.main(ExtractText.java:76)
at org.apache.pdfbox.PDFBox.main(PDFBox.java:42)

While these PDFs are non-conforming, it'd be an improvement to allow them to be read and processed.