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Posted to dev@pdfbox.apache.org by "Timo Boehme (Updated) (JIRA)" <ji...@apache.org> on 2011/12/23 16:30:30 UTC

[jira] [Updated] (PDFBOX-1196) Object offsets should be of type long + PATCH

     [ https://issues.apache.org/jira/browse/PDFBOX-1196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timo Boehme updated PDFBOX-1196:
--------------------------------

    Attachment: 2011-12-23_long-obj-offset.patch

patch against current trunk (rev. 1220892) which changes object offsets to long type
                
> Object offsets should be of type long + PATCH
> ---------------------------------------------
>
>                 Key: PDFBOX-1196
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1196
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Parsing
>    Affects Versions: 1.6.0
>            Reporter: Timo Boehme
>            Priority: Minor
>         Attachments: 2011-12-23_long-obj-offset.patch
>
>
> Currently object offsets are stored as integer (32 bit). However the PDF specification does not limit a PDF document to 2GB. The only restriction is the XREF table which supports 10 digit values for object offsets. Thus we could have offsets >2GB (<10GB). The attached patch changes all locations (as far as I could find them) dealing with object offsets to long type.
> Since this is a rather small change which should not have greater performance/space impact I recommend to include it. Otherwise we would have to include checks that the parsed file is smaller then Integer.MAX_VALUE.

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