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https://issues.apache.org/jira/browse/PDFBOX-1043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13052448#comment-13052448
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Mehdi Houshmand commented on PDFBOX-1043:
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I've attached a patch to fix this issue.
However, the spec is somewhat ambiguous about the use case. The intention for
this feature is for "Incremental Updates", such that trailers can be appended
to the end of the document, and should one of their /Version parameter be
greater than that of the header, the version in the header is overridden. Our
use case is that we don't know until half-way through writing the PDF document
what version to specify. In this scenario, there is only a single trailer and
the /Version parameter will override the header.
> PDF Version not read in the document catalog
> --------------------------------------------
>
> Key: PDFBOX-1043
> URL: https://issues.apache.org/jira/browse/PDFBOX-1043
> Project: PDFBox
> Issue Type: New Feature
> Components: Parsing, PDModel
> Affects Versions: 1.5.0
> Environment: Ubuntu 11.04
> Reporter: Mehdi Houshmand
> Priority: Minor
> Attachments: documentcatalog.patch
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> The version of the PDF document is read ONLY in the header. PDF 1.4 allows
> the version to also be specified in the document catalog (see section 3.6.1
> PDF 1.5 reference).
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