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https://issues.apache.org/jira/browse/PDFBOX-696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andreas Lehmkühler resolved PDFBOX-696.
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Resolution: Fixed
I've applied the patch with version 940001
Thanks to Michael for the contribution.
> PDTrueTypeFont limits number of glyph widths to 256. This can easily be
> removed.
> --------------------------------------------------------------------------------
>
> Key: PDFBOX-696
> URL: https://issues.apache.org/jira/browse/PDFBOX-696
> Project: PDFBox
> Issue Type: Improvement
> Components: Parsing
> Affects Versions: 1.1.0
> Environment: Ubuntu Karmic
> Reporter: Michael Berg
> Assignee: Andreas Lehmkühler
> Fix For: 1.2.0
>
>
> Currently the support for fonts with exotic glyphs are limited at best.
> Making PDFBox render chinese characters has proved to be a bit of a pain ...
> :-)
> One blocker we ran into was the limitation of glyph widths to 256 individual
> widths. In PDTrueTypeFont.java, we find this in loadDescriptorDictionary():
> int firstChar = 0;
> int maxWidths=256;
> HorizontalMetricsTable hMet = ttf.getHorizontalMetrics();
> int[] widthValues = hMet.getAdvanceWidth();
> List widths = new ArrayList(maxWidths);
> The "int maxWidths=256" affects the remaining code so glyph widths for
> codepoints larger than 256 are ignored. We found that there is no need to
> impose such a limitation, and that having it makes it impossible to generate
> a proper /W dictionary when generating a cidfonttype2. Simply replacing the
> hard coded value 256 with the following seems to be a perfectly usable
> solution:
> int firstChar = 0;
> //int maxWidths=256; <---- No hard coded value
> int maxWidths = glyphToCCode.length; // <---- rather
> use the counted number of codepoints
> HorizontalMetricsTable hMet = ttf.getHorizontalMetrics();
> int[] widthValues = hMet.getAdvanceWidth();
> List widths = new ArrayList(maxWidths);
> Integer zero = new Integer( 250 );
> Is it possible to have this change added to 1.2.0?
> Also we would be more than happy to contribute some code that shows how you
> can use PDFBox to produce PDF's containing special characters (asian, chinese
> etc) by using codepoint-to-glyph mapping and copy-paste working (/tounicode).
> The code allows API users to simply use UTF-8 strings and not worry about any
> of the tricky font handling details.
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