Justus Piater created FOP-2993:
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Summary: With PDFBox 2.0.22: Failed to embed font / Illegal
offSize value 0 in CFF font
Key: FOP-2993
URL: https://issues.apache.org/jira/browse/FOP-2993
Project: FOP
Issue Type: Bug
Components: font/opentype
Affects Versions: 2.5
Environment: Arch Linux
Reporter: Justus Piater
Attachments: exception-backtrace.txt, fop.xconf
This bug did not show with PDFBox 2.0.21 and appeared with PDFBox 2.0.22 so it
may actually be a bug in PDFBox (or with this font). However, it may be related
to [PDFBOX-5033|https://issues.apache.org/jira/browse/PDFBOX-5033]. Moreover, I
have no use for PDFBox besides FOP and don't know how to test the fontbox jar
without FOP.
To trigger this bug, run fop on this this .fo:
{code:xml}
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format";>
<fo:layout-master-set>
<fo:simple-page-master master-name="one">
<fo:region-body />
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="one">
<fo:flow flow-name="xsl-region-body">
<fo:block font-family="FreeMono">Text</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>
{code}
This causes the following exception; the full exception backtrace is attached:
{{Jan 07, 2021 11:44:37 AM org.apache.fop.apps.FOUserAgent processEvent}}
{{INFO: Rendered page #1.}}
{{Jan 07, 2021 11:44:37 AM org.apache.fop.pdf.PDFFactory makeFontFile}}
{{SEVERE: Failed to embed font
\[org.apache.fop.fonts.LazyFont@5d25e6bb\{FreeMono}\{metrics-url=null,embed-url=/usr/share/fonts/gnu-free/FreeMono.otf,kerning=true,advanced=true}]
FreeMono}}
{{java.io.IOException: Illegal (< 1 or > 4) offSize value 0 in CFF font at
position 42277}}
{{at org.apache.fontbox.cff.CFFDataInput.readOffSize(CFFDataInput.java:85)}}
This bug triggers with all GNU Free fonts, but not with any of the other OTF
fonts I tried.
I also attach my fop.xconf (with explicit <font> specifications because of
FOP-2591).
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