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https://issues.apache.org/jira/browse/PDFBOX-4371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16702420#comment-16702420
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Tim Allison commented on PDFBOX-4371:
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This seems to help extraction generally. I just finished a run against our
main regression corpus comparing 2.0.13 with and without this feature.
Results are here:
http://162.242.228.174/reports/reports_pdfbox_2_0_13-pre-rc-detectAngles.tgz
When I have the time comparisons, I'll post those here.
I did notice we had some new timeouts, and I'll post those here as well after I
look a bit more closely.
I also want to try this out on our updated regression corpus.
Thank you, [~tilman]!
> Improve ExtractText utility so that it can extract rotated text automatically
> -----------------------------------------------------------------------------
>
> Key: PDFBOX-4371
> URL: https://issues.apache.org/jira/browse/PDFBOX-4371
> Project: PDFBox
> Issue Type: Improvement
> Components: Text extraction, Utilities
> Affects Versions: 2.0.12, 3.0.0 PDFBox
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Major
> Fix For: 2.0.13, 3.0.0 PDFBox
>
> Attachments: ExtractAngledText.java
>
>
> In a first step, detect all rotations by analyzing the effective text
> rendering matrix. In a second step, do a text extraction for each rotation by
> prepending an appropriate transform to the page content stream (so that our
> text has angle == 0) and then filtering any rotated text. Test file: the file
> from PDFBOX-4368.
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