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https://issues.apache.org/jira/browse/TIKA-4891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18114677#comment-18114677
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Tim Allison commented on TIKA-4891:
-----------------------------------
Sorry, y, I was not being precise. PDF/UA is more specific. The point of this
ticket is to do a better job with extracting structural markup into our output
as long as the tags are not pathological.
Tika had a separate handler that I wrote a while ago before I understood well
how the tags work and how to integrate that information with our+PDFBox's
current extraction algorithm.
The point of this ticket is to figure out a better way to extract that
structure when it exists – with guards (as possible) against tags that are nutz.
> Improve handling of PDF/UA structural tags/marked content
> ---------------------------------------------------------
>
> Key: TIKA-4891
> URL: https://issues.apache.org/jira/browse/TIKA-4891
> Project: Tika
> Issue Type: Task
> Reporter: Tim Allison
> Priority: Major
> Attachments: 1008690.pdf
>
>
> PDF/UA includes structural markup. We hacked out a standalone handler for
> this back in 1.x but haven't touched it in years.
>
> We should modernize our handling of structural tags and eventually consider
> turning that on by default. That decision will be based on evaluation on
> 1000s of PDFs. This is not a default switch to be taken lightly.
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