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https://issues.apache.org/jira/browse/PDFBOX-4916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17159957#comment-17159957
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Andreas Lehmkühler commented on PDFBOX-4916:
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{quote}now all tests from PDAcroFormFlattenTest.java pass, including the 8
disabled tests (which brought minor visual differences).
{quote}
That wasn't intended, on the contrary, the patch shouldn't change anything at
all. BTW, it doesn't work for me, 5 test are still failing in my environment
> Use dedicated scale and translate operations instead of concatenate where
> possible
> ----------------------------------------------------------------------------------
>
> Key: PDFBOX-4916
> URL: https://issues.apache.org/jira/browse/PDFBOX-4916
> Project: PDFBox
> Issue Type: Improvement
> Components: Text extraction
> Affects Versions: 2.0.20, 3.0.0 PDFBox
> Reporter: Alfred
> Assignee: Andreas Lehmkühler
> Priority: Minor
> Attachments: PDFBOX-4916.patch
>
>
> LegacyPDFStreamEngine does translating and scaling using the generic
> concatenate matrix ops.
> A scale or a translate require much less multiplications and so there's room
> to improve there.
> I have the code ready and I will submit a patch right away.
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