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https://issues.apache.org/jira/browse/PDFBOX-4371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16702642#comment-16702642
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Tilman Hausherr commented on PDFBOX-4371:
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I'll open a new issue when I have more information, just testing stuff while I
couldn't sleep…
180551.pdf - spaces missing
082220.pdf - that one is not rotated; without the new option, extraction looks
OK, with the new option, spaces are missing.
I suspect it is somehow related to type 3 fonts being used.
> 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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