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https://issues.apache.org/jira/browse/PDFBOX-833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736377#comment-13736377
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Luis Bernardo commented on PDFBOX-833:
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Great work! The workaround was to bypass a bug in the Sun JDK, which got even
worse when the FontScaler was changed to T2KFontScaler (which happened between
1.6_30 and 1.6_45). Things got even worse in Sun JDK 1.7. In OpenJDK, which
uses FreetypeFontScaler, things were better, but not perfect either (the font
size comes out wrong, probably due to wrong scaling). So, not relying on JDK to
render Type1/CFF fonts is a very welcomed change!
> Wrong encoding with Type1C font when specific encoding is defined
> -----------------------------------------------------------------
>
> Key: PDFBOX-833
> URL: https://issues.apache.org/jira/browse/PDFBOX-833
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 1.3.1
> Reporter: Timo Boehme
> Assignee: Andreas Lehmkühler
> Fix For: 2.0.0
>
> Attachments: pdfbox-833.patch, sample1-fixed.png,
> sample1-original.png, sample.pdf, simpleh2.pdf
>
>
> The Type1C font implementation overwrites the encoding() method of PDFont
> base class. This results in a lookup of codes to characters as defined in the
> font.
> However if an encoding is explicitly given (like WinAnsiEncoding) this leads
> to wrong results if encoding codes do not match glyph codes.
> In a test document (which unfortunately I cannot make public - an article
> from Elsevier) a Type1C font is embedded which defines a copyright sign at
> glyph position 259. The encoding is defines as WinAnsiEncoding. Text
> characters are defined corresponding to the WinAnsiEncoding. In case of the
> copyright sign it is 0xa9 (169) where the font has glyph 'quotesingle'
> defined.
> Since currently I have no other test cases I implemented following workaround
> for WinAnsiEncoding (which might be relaxed to other PDF encodings as well:
> in PDType1CFont.encode() I start with:
> if ( getEncoding() instanceof WinAnsiEncoding )
> // use PDFont encoding
> return super.encode( bytes, offset, length );
> This resolves the encoding problems for text extraction.
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