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https://issues.apache.org/jira/browse/PDFBOX-4371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-4371:
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Description: 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. (was: 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. Code posted to the users mailing
list, thread {{Extracting page "correctly"}}.)
> 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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