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https://issues.apache.org/jira/browse/PDFBOX-4038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Petr Slaby updated PDFBOX-4038:
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Attachment: BlueValuesTest.java
> CFF font Blue values and other delta encoded lists read incorrectly
> -------------------------------------------------------------------
>
> Key: PDFBOX-4038
> URL: https://issues.apache.org/jira/browse/PDFBOX-4038
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.8
> Reporter: Petr Slaby
> Attachments: BlueValuesTest.java, CFFParser.java.patch
>
>
> The attached test compares the values retrieved via CFFParser from an
> OpenType font with the expected values as seen in FontForge (go to
> Element->Font Info->PS Private).
> The font NeoSans Black.otf can be found at https://www.wfonts.com/font/neosans
> The CFF font specification explaining the encoding of the entries which are
> incorrectly parsed by FontBox CFFParser can be found here
> https://typekit.files.wordpress.com/2013/05/5176.cff.pdf
> We use FontBox to read the font when we need to embed it into an PDF which we
> produce via our Apache FOP based software. Adobe validator complains about
> incorrect "Blue values" sorting then.
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