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https://issues.apache.org/jira/browse/TIKA-1759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14940009#comment-14940009
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Tim Allison commented on TIKA-1759:
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[~tilman], I think we're good with PDAnnotationMarkup's {{getTitlePopup()}} to
extract what I'm currently calling "commentAuthor", and we're good with
"digitalSigner" via PDSignature's {{getName}}.
How would we/could we extract authorship information from different versions
(equivalent to MSOffice's track changes) in PDFs?
> Extract contributor metadata from supporting file formats
> ---------------------------------------------------------
>
> Key: TIKA-1759
> URL: https://issues.apache.org/jira/browse/TIKA-1759
> Project: Tika
> Issue Type: Improvement
> Reporter: Tim Allison
> Priority: Minor
> Attachments: contributors.zip
>
>
> Many common file formats store information about contributors (broadly
> speaking) to a document. We are currently extracting author/creator and
> modifier/last author. Let's add extraction for:
> # comment authors
> # revisers (authors who make changes with track changes on)
> # signers
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