You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pdfbox.apache.org by "simon steiner (JIRA)" <ji...@apache.org> on 2013/05/16 16:53:16 UTC
[jira] [Commented] (PDFBOX-833) Wrong encoding with Type1C font
when specific encoding is defined
[ https://issues.apache.org/jira/browse/PDFBOX-833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13659603#comment-13659603 ]
simon steiner commented on PDFBOX-833:
--------------------------------------
After this change the ExtractText class doesnt work for type1c fonts.
> 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: 1.8.2
>
> Attachments: pdfbox-833.patch, sample1-fixed.png, sample1-original.png, sample.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.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira