John Hewson created PDFBOX-3092:
-----------------------------------
Summary: Format 4 TTF cmap table is parsed incorrectly
Key: PDFBOX-3092
URL: https://issues.apache.org/jira/browse/PDFBOX-3092
Project: PDFBox
Issue Type: Bug
Affects Versions: 2.0.0
Reporter: John Hewson
Fix For: 2.1.0
Certain large Format 4 cmap tables aren't being parsed correctly by
CmapSubtable#processSubtype4(), for example in the font "ArialUnicodeMS".
This results in missing glyphs when rendering the file from PDFBOX-2950, when
"ArialUnicodeMS" is used as a substitute. You can force this to happen by
changing the following line of PDCIDFontType2:
{code}
// find font or substitute
CIDFontMapping mapping = FontMappers.instance()
.getCIDFont(getBaseFont(),
getFontDescriptor(),
getCIDSystemInfo());
{code}
Replace getBaseFont() with "ArialUnicodeMS"
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