Hi, On Sat, 26 May 2007 02:16:54 +0300 > On Saturday 26 May 2007 02:13:52 Werner LEMBERG wrote: > > > > Hmm, this font doesn't have a `cmap' table, which is invalid according > > to the OpenType standard, and the behaviour is defined as > > `implementation specific' in PDF standard (see section 5.5. in the PDF > > 1.6 specification). > > I see but lots of real world PDF files have this kind of fonts :-/
I remember, ft-devel list receives several posts per year saying "I found an embedded font in PDF that FT2 cannot load, FT2 should load it". It's not always stated which application or library using FT2 to load embedded TrueType data from PDF. In my opinion, embedded font in PDF is NOT self-standing font file. Even if it's forcibly loaded by ignoring essential tables, it is no more than jumping the first hurdle. Without cmap, most character-based API are not usable. One of the next expected hurdle might be "we want to convert glyph index to character code, to extract or search a text in PDF. FT2 should do..." It is impossible. Such requirement should be supplied by slightly higher level library which can associate the text object, embedded font object, CMap object, ToUnicode object. I think it's far higher than FT2. As a result, the behaviour of current FT2 is reasonable, I think. However, if somebody can define the reasonable subset of FT2 API which is required by most PDF parser, it will be quite helpful for both of FT2 and PDF-related softwares. If you have some idea of subsetted API for embedded font, please let me know. Regards, mpsuzuki _______________________________________________ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
