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https://issues.apache.org/jira/browse/PDFBOX-3293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18093907#comment-18093907
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Tilman Hausherr commented on PDFBOX-3293:
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I'd be interested because this is something that has been a pain for Chinese
users for many years.
Is this something that would be only for fontbox, or pdfbox too? From what I
remember, hinting is related to the actual rendering dimensions.
We don't mind AI, but be careful:
https://www.apache.org/legal/generative-tooling.html
We'd also need an ICLA
https://www.apache.org/licenses/contributor-agreements.html#submitting
Also be patient, there's currently lots of work related to another huge flaw
that we had for years (PDFBOX-4951)
> Chinese font glyphs with overlapping paths not rendered correctly
> -----------------------------------------------------------------
>
> Key: PDFBOX-3293
> URL: https://issues.apache.org/jira/browse/PDFBOX-3293
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox, Rendering
> Affects Versions: 2.0.0
> Reporter: Pei-Tang Huang
> Priority: Major
> Attachments: PDFBOX-3293.ttf, PDFBOX-3293_reduced.pdf, fontforge.png,
> glyf.png, hinted.png, sample.pdf, sample_rendered.tif, unhinted.png
>
>
> Font glyphs with overlapping paths may be rendered in correctly, especially
> when the font size is small.
> Sadly, the Traditional Chinese edition of Windows bundled fonts 細明體&新細明體
> (MingLiU & PMingLiU) and 標楷體 (DFKai-SB) all suffer from this problem.
> See attached sample.pdf and the rendered sample_rendered.tif.
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