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https://issues.apache.org/jira/browse/PDFBOX-3092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15117576#comment-15117576
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Andreas Lehmkühler commented on PDFBOX-3092:
--------------------------------------------

IMHO the font isn't well designed

> 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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