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https://issues.apache.org/jira/browse/PDFBOX-1549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andreas Lehmkühler reassigned PDFBOX-1549:
------------------------------------------
Assignee: Andreas Lehmkühler
> TTFSubFont generates bug-prone TTF sub fonts screwing some printers
> -------------------------------------------------------------------
>
> Key: PDFBOX-1549
> URL: https://issues.apache.org/jira/browse/PDFBOX-1549
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 1.8.0
> Environment: all
> Reporter: Wolfgang Glas
> Assignee: Andreas Lehmkühler
> Attachments: TTFSubFont-PDFBOX-1549-1.patch
>
>
> The extracted TTF fonts generated by TTFSubFont do not conform to the
> TrueType standard.
> Most notably, the font checksum is calculated to an invalid value
> among other more subtle issues. Users may experience a screwed up firmware of
> Minolta printers when such a file is printed via Adobe Reader and the Windows
> PostScript printer driver.
> With the help of Microsoft's font validator tool, I have already been able
> to
> fix most of these problems in my original code:
> http://www.microsoft.com/typography/fontvalidator.mspx
> A port of my patch to pdfbox is on the way, but it's quite cumbersome to
> port the patch to the pdfbox code. (tab vs. space, testcases needed...)
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