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https://issues.apache.org/jira/browse/PDFBOX-1744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13791400#comment-13791400
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Chris Bamford edited comment on PDFBOX-1744 at 10/10/13 11:30 AM:
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Attached: Patch file for fix
was (Author: bammers):
Patch file for fix
> Be resilient to PDFs with missing version info
> ----------------------------------------------
>
> Key: PDFBOX-1744
> URL: https://issues.apache.org/jira/browse/PDFBOX-1744
> Project: PDFBox
> Issue Type: Improvement
> Components: Parsing
> Affects Versions: 1.8.2
> Environment: PDFBox 1.8.2, IntelliJ IDEA 12.1.6, Mac OS X 10.7.5,
> Java 1.7, Maven 2.2.1
> Reporter: Chris Bamford
> Priority: Minor
> Fix For: 1.8.3
>
> Attachments: no_version.pdf, pdfbox.patch
>
>
> Proposed addition to 1.8.2 ->
> pdfbox/src/main/java/org/apache/pdfbox/pdfparser/PDFParser.java ->
> parseHeader() to default the PDF version to 1.4 in situations where it is
> missing (yes, there really are docs out there like this!).
> This prevents an exception caused from a negative substring offset
> calculation: "String index out of range: -3"
> I have floated the question on the us...@pdfbox.apache.org mailing list (10th
> October 2013) and it was suggested I default the PDF version to 1.4 in this
> scenario. I have tested it locally and it works (apparently PDFBox doesn't
> take the version number into account anyway).
> Now over to you guys to decide if this is a good idea or not in the wider
> scope.
> Should you give the green light, I attach:
> # a sample file which causes the exception
> # a patch file + instructions.
> My goal is text extraction, even on broken files (if possible).
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