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From "Eric Leleu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PDFBOX-1101) Improve JavaCC Grammar and Preflight to manage Xref stream object
Date Thu, 18 Aug 2011 11:00:27 GMT
Improve JavaCC Grammar and Preflight to manage Xref stream object
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                 Key: PDFBOX-1101
                 URL: https://issues.apache.org/jira/browse/PDFBOX-1101
             Project: PDFBox
          Issue Type: Bug
          Components: Preflight
    Affects Versions: 1.7.0
            Reporter: Eric Leleu
            Assignee: Eric Leleu


Until PDF 1.4, keywords "xref" and "trailer"  were mandatory at the end of the PDF File to
know where object are located into the PDF Body.
However, according to my understanding of the PDF Reference 1.5 and 1.7, this two entries
can be referenced as object stream.
Because of the PDF/A-1 specification is based on the PDF 1.4, our JavaCC parser check that
the file contains trailer entries and extract these trailers to process some controls after
Syntax Validation.


TODO :

- Check XRef and Trailer needs in the PDFReference 1.4 to 1.7
- implement new XRef and Trailer managment rules in preflight.

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