[PDFBOX-1151] StreamCorruptedException on bad PDF with -force

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 1.6.0, 1.8.7, 2.0.0
• Component/s: Parsing
• Environment: Windows Vista; Sun JDK 1.6.0_26
• Assignee: Andreas Lehmkühler
• Reporter: Stas Shaposhnikov
• Created: 28/Oct/11 10:01
• Updated: 26/Jul/15 16:50
• Resolved: 26/Jul/15 16:50

Description

I am getting the StreamCorruptedException when trying to parse a possibly invalid PDF document even if the -force option is specified.

Stack trace:

java.io.StreamCorruptedException: Error: data is null
at org.apache.pdfbox.filter.LZWFilter.decode(LZWFilter.java:82)
at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:301)
at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:221)
at org.apache.pdfbox.cos.COSStream.getUnfilteredStream(COSStream.java:156)
at org.apache.pdfbox.pdfparser.PDFStreamParser.<init>(PDFStreamParser.java:105)
at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:264)
at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:251)
at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:225)
at org.apache.pdfbox.util.PDFTextStripper.processPage(PDFTextStripper.java:442)
at org.apache.pdfbox.util.PDFTextStripper.processPages(PDFTextStripper.java:366)
at org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:322)
at org.apache.pdfbox.ExtractText.startExtraction(ExtractText.java:256)
at org.apache.pdfbox.ExtractText.main(ExtractText.java:76)
at org.apache.pdfbox.PDFBox.main(PDFBox.java:42)

My suggestion is to skip bad sub-streams without throwing exceptions in PDFStreamEngine.processSubStream() in case of forceParsing is true.