[
https://issues.apache.org/jira/browse/PDFBOX-3293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18113129#comment-18113129
]
Patrick Corless edited comment on PDFBOX-3293 at 9/9/26 4:39 AM:
-----------------------------------------------------------------
Here's a look at what I've been working on with regards to the [TrueType
hinting
support|https://github.com/pcorless/pdfbox/pull/new/PDFBOX-3293.truetype.hinting.submit.no-tricky]
There is an variant
[branch|https://github.com/pcorless/pdfbox/pull/new/PDFBOX-3293.truetype.hinting.submit]
which has an optimizations to scale "tricky" fonts for every size. There are
two associated lookup table that make this work and they were pulled from
FreeType which raises a licensing questing that would need to be discussed.
But I'd like to put this aside for now and just focus on the first link as
takes into account my history with the problem combined with the help of a
coding assistant.
was (Author: JIRAUSER313815):
Here's a look at what I've been working on with regards to the [TrueType
hinting
support|[https://github.com/pcorless/pdfbox/pull/new/PDFBOX-3293.truetype.hinting.submit.no-tricky].]
There is an variant
[branch|[https://github.com/pcorless/pdfbox/pull/new/PDFBOX-3293.truetype.hinting.submit]]
which has an optimizations to scale "tricky" fonts for every size. There are
two associated lookup table that make this work and they were pulled from
FreeType which raises a licensing questing that would need to be discussed.
But I'd like to put this aside for now and just focus on the first link as
takes into account my history with the problem combined with the help of a
coding assistant.
> 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.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
