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https://issues.apache.org/jira/browse/PDFBOX-4951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18097410#comment-18097410
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Tilman Hausherr edited comment on PDFBOX-4951 at 7/19/26 12:24 PM:
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Back to this. I tried to port the code to 3.0. It worked fine with building the
new subproject, but failing doing the whole project. It turns out that the
subproject was doing jdk11, but the whole project was doing jdk8. So it fails
with jdk8.
What failed:
- Latin ligatures
- Bengali
- SMP
- Thai
- Bidi (minor)
FiraCode and DIN are correct.
So I could still commit this, but I'll have to change / disable some tests and
add comments that this will need jdk11 to work at full potential.
Update:
I see that our CI uses jdk17 so it might still work there.
was (Author: tilman):
Back to this. I tried to port the code to 3.0. It worked fine with building the
new subproject, but failing doing the whole project. It turns out that the
subproject was doing jdk11, but the whole project was doing jdk8. So it fails
with jdk8.
What failed:
- Latin ligatures
- Bengali
- SMP
- Thai
- Bidi (minor)
FiraCode and DIN are correct.
So I could still commit this, but I'll have to change / disable some tests and
add comments that this will need jdk11 to work at full potential.
> Sequences of DIN SPEC 91379 with combining letters are rendered incorrectly
> ---------------------------------------------------------------------------
>
> Key: PDFBOX-4951
> URL: https://issues.apache.org/jira/browse/PDFBOX-4951
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.21
> Reporter: Volker Kunert
> Priority: Major
> Attachments: Bildschirmfoto_2026-07-07_08-38-04.png,
> DIN_SPEC_91379_Sequences-aa.pdf, DIN_SPEC_91379_Sequences-ab.pdf,
> DIN_SPEC_91379_Sequences-ac.pdf, DIN_SPEC_91379_Sequences.txt,
> DefaultScriptProcessor.java, DejaVuSans.ttf, DoGlyphLayoutBidi.pdf,
> DoGlyphLayoutDinSpec91379.pdf, DoGlyphLayoutDinSpec91379Form.pdf,
> DoGlyphPositionBengali.pdf, ExamplePdfboxFopPos-By-Tilman.pdf,
> ExamplePdfboxFopPos.java, ExamplePdfboxFopPos.pdf,
> ExamplePdfboxFopPosForm.java, ExamplePdfboxFopPosForm.pdf,
> FiraCode-Regular.ttf, FontForge-Lohit-Bengali.png, TestPdfbox.java,
> TestPdfboxFop2.java, TestPdfboxFop2.pdf, TestPdfboxJava2D.java,
> TestPdfboxJava2D.pdf, bengali.fo, bengali.pdf, bidi-1.png, bidi-2.png,
> bidi.fo, bidi.pdf, bidi.png, config.xml, dejavu-sequences.png,
> example-PDFBOX-3147-NotoSansThaiLooped-Regular.png,
> image-2026-05-23-16-16-53-442.png, image-2026-05-23-16-17-28-172.png,
> image-2026-05-26-16-49-45-529.png, image-2026-07-04-21-37-03-606.png,
> image-2026-07-04-21-37-35-370.png, kerning.fo, kerning.pdf,
> ligatures-kerning.png, patch-2020-10-02.txt, pdfbox.patch, pdfbox.pdf,
> screenshot-1.png, screenshot-2.png, screenshot-3.png
>
>
> Accented Letters composed of Unicode base letter and combining accent are
> rendered wrong. E.g. with 0041 030B LATIN CAPITAL LETTER A WITH COMBINING
> DOUBLE ACUTE ACCENT the accent appears at the right hand side of the letter
> A, not above the letter A.
> The position is wrong for most of the sequences defined in the following spec:
> DIN SPEC 91379: Characters in Unicode for the electronic processing of names
> and data
> exchange in Europe; with digital attachment
> [https://www.xoev.de/downloads-2316#StringLatin]
> [https://www.din.de/de/wdc-beuth:din21:301228458]
>
> The correct rendering should look like the output of hb-view 2.6.8, see files
> DIN_SPEC_91379_Sequences*.pdf.
> The output of PDFBox is appended in pdfbox.pdf, which is created by running
> TestPdfbox.java. The sequences are read from file
> DIN_SPEC_91379_Sequences.txt.
>
> Font used for testing: NotoSansMono-Regular.ttf, see
> [https://www.google.com/get/noto/]
> download:
> [https://noto-website-2.storage.googleapis.com/pkgs/NotoSansMono-hinted.zip]
> See also FOP-2969
>
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