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https://issues.apache.org/jira/browse/PDFBOX-423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709520#action_12709520
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Connor McLeod commented on PDFBOX-423:
--------------------------------------
Looking at file I discovered somethinh that may help:
The problem with this file is that contains two EOF marks
PDFBox stops parsing at first %EOF mark, it checks trailer searching Encrypt
and then find the object (25 0), but this object was after first %%EOF mark, so
it doesn't find object and returns that document isn't signed.
Acording to PDF 32000-1:2008 Chapter 7.5.6 Incremental Updates, a PDF document
can be updated incrementally ending update with a new trailer and a new %%EOF
mark.
Object 25 0 can be found at update part.
> Can't detect if the PDF ( ver 1.7 ) is encrypted or not.
> --------------------------------------------------------
>
> Key: PDFBOX-423
> URL: https://issues.apache.org/jira/browse/PDFBOX-423
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 0.8.0-incubator
> Environment: Windows Vista
> Reporter: Takashi Komatsubara
> Attachments: pass17.pdf
>
>
> The latest PDFBox can't detect if the PDF ( Ver 1.7 ) created by Acrobat 9 is
> encrypted or not.
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