Volker Kunert created PDFBOX-4951:
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Summary: Sequences 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
Attachments: DIN_SPEC_91379_Sequences-aa.pdf,
DIN_SPEC_91379_Sequences-ab.pdf, DIN_SPEC_91379_Sequences-ac.pdf,
DIN_SPEC_91379_Sequences.txt, TestPdfbox.java, pdfbox.pdf
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]
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