What's wrong with this CFF font please

[ArchivePoster]

Posted by: idh1927
         

 

Hi

 

Is there anybody who could kindly take a look at this open-type CFF font.

 

Font validator only reports warnings on missing chars or missing apple sub-tables in cmap. I also wrote a test WPF application (.NET 3.5) and it displayed the font correctly using a label and a text block.

 

However Windows font viewer rejects the font as invalid. Also, trying to use the font in an XPS document results in a weird UriFormatException, definetly introduced by the font:

 

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.UriFormatException: Invalid URI: A port was expected because of there is a colon (':') present but the port could not be parsed.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at System.Uri..ctor(String uriString, UriKind uriKind)
[...]

 

Any help would be greatly appreciated, thank you.

 

Best Regards,

 

Stefania

         

[ArchivePoster]

Posted by: idh1927
         

Solved - thank you.

 

It was just a matter of adding more names to the name table. For other people benefit these are the name ids I used for CFF fonts, (MAC and MS platforms):

 

0, 1, 2, 3, 4, 5, 6, 11, 12, 16, 17 and 19

 

Not sure which ones are mandatory, but with these the font is recognized by the windows font viewer. The XPS viewer exception is still there but I guess it can be discussed in a different forum.

 

Many thanks,

 

Stefania

 

 

         

[ArchivePoster]

Posted by: HansBaerfuss
         

Hi Stefania,

 

I ran your font through Adobe's FDK and couldn't find any problems with the embedded CFF font. I also converted the font to a PDF file and it works ok.

 

So I guess it has something to do with the OpenType wrapper. I suspect that if you don't have (1,0) cmap entries you also should remove the (1,0) name entries.

 

If that doesn't help I would embedd the CFF font in a working OpenType wrapper and vice versa. This way you can at least determine in which part the problem is located.

 

Best regards,

Hans

         

[ArchivePoster]

Posted by: idh1927
         

Thank you for looking into it Hans. I solved it now. The remaining exception was caused by a bug in my code, I was not transferring the font data correctly from native c++ to managed c# code.

 

With best regards,

 

Stefania

 

 

         

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