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https://issues.apache.org/jira/browse/PDFBOX-4667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16948889#comment-16948889
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Struve Pierre commented on PDFBOX-4667:
---------------------------------------
Thanks for the reply,
I do not know either if it is a bug or not :)
I wanted to know if this behavior had already been reported. I had found no
related issue. But I'm a poor searcher.
So I'll put some code from PDFBox.
{code:java}
// extract from org.apache.pdfbox.pdmodel.font.FontMapperImpl#isCharSetMatch
long JIS_JAPAN = 1 << 17;
long CHINESE_SIMPLIFIED = 1 << 18;
long KOREAN_WANSUNG = 1 << 19;
long CHINESE_TRADITIONAL = 1 << 20;
long KOREAN_JOHAB = 1 << 21;
if (cidSystemInfo.getOrdering().equals("GB1") &&
(codePageRange & CHINESE_SIMPLIFIED) == CHINESE_SIMPLIFIED)
{
return true;
}
...
{code}
The issue is that as "-1" = 0xFFFFFFFFFFFFFFFF the provided font will match all
.
I will try to provide some code, but I'm not sure it would be visible on a PC.
Issue might not appear because of preinstalled fonts.
In order to reproduce locally I had to build my own implementations of
FontMapper and FontProvider in order to load fonts from a folder instead of
loading fonts from the system. But I might have missed something and it is
already possible from PDFBox.
So I'll try to provide code and pdf file tomorrow or at the beginning of next
week.
> Issue in FontMapperImpl#isCharSetMatch when font codePageRange is -1
> --------------------------------------------------------------------
>
> Key: PDFBOX-4667
> URL: https://issues.apache.org/jira/browse/PDFBOX-4667
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.16
> Reporter: Struve Pierre
> Priority: Trivial
> Attachments: OcrB Regular.ttf, screenshot-1.png
>
>
> Hi I met an issue with a font.
> It seems to me that code page range has not been set and then in
> org.apache.pdfbox.pdmodel.font.FontMapperImpl#isCharSetMatch -1 is used.
> It seems to me that -1 means "open bar".
> I was trying to find a font that matches CHINESE_SIMPLIFIED
> (cidSystemInfo.getOrdering{color:#9876aa}(){color}.equals{color:#9876aa}({color}{color:#6a8759}"GB1"{color}{color:#9876aa}){color}),
> and due to the -1 this font was matched and unluckily it was the one picked.
> Do you think we can make a special case for -1 (return false)?
> Is there any font currently that matches all code page ranges?
>
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