<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> Am 23.03.2012 06:08, schrieb suzuki toshiya: <blockquote cite="mid:4F6C053A.3060808@hiroshima-u.ac.jp" type="cite"> <pre wrap="">Hi Thomas, I've tested latest git HEAD including your patch substituting missing CID-keyed fonts to MS-Mincho, by MinGW binary. I'm sorry to say such, but I wonder what is the advantage. I'm usually using GNU/Linux and other Unix-like systems, and I'm unfamiliar how Win32 people configures & uses poppler, so maybe I made some misunderstanding about your motivation. Please let me confirm about the background of MS-Mincho fallback. In your first post, you commented that substitution of unembedded CID-keyed by Helvetica causes a crash, so, the substitution by MS-Mincho (or other CJK fonts?) is expected. <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/archives/poppler/2012-February/008715.html">http://lists.freedesktop.org/archives/poppler/2012-February/008715.html</a> The crashing problem is very critical, so even if the substitution by MS-Mincho cannot display the glyphs correctly, some fix is needed. I agree. But, for first, I could not reproduce the crashing problem by my binaries (pdffonts, pdftoppm and pdftops). Could you tell me more about your crashing problem (how to reproduce, sample PDF, etc)?</pre> </blockquote> You cannot reproduce it anymore, I fixed that, too: In case that a CID font is expected but Helvetia is taken, the call of fontLoc = font->locateFont(xref, gTrue); returned a NULL which the causes a crash. <blockquote cite="mid:4F6C053A.3060808@hiroshima-u.ac.jp" type="cite"> <pre wrap=""> Secondary, the substitution by MS-Mincho makes the problematic substitution unclear. I attached a PDF created by Microsoft Word and Adobe Acrobat; the smallest PDF that no fonts are embedded (I think the combination of Microsoft Word + Adobe Acrobat is the one of the most widely used workflow for PDF). Please compare attached 2 PNG pictures converted by pdftoppm with or without MS-Mincho fallback. * A PNG image created without MS-Mincho fallback show many squares for the glyphs that cannot be shown by Helvetica. It is easy for the users to find something goes wrong. Also, ASCII characters are shown correctly. * A PNG image created with MS-Mincho fallback show nothing at the positions where some glyphs are shown originally. It is difficult for the users to find something goes wrong. Also, no ASCII characters are shown.</pre> </blockquote> As I explained, You should install ghostscript and then run gswin32c -q -dBATCH -sFONTDIR=<windows font directory>  -sCIDFMAP=<popper data dir>/cidfmap mkcidfm.ps I'm not really sure where the poppler data dir ist expected on MinGW, should be /usr/local/share/poppler, otherwise You can patch the code where the GlobalParam constructor is called , I do it normally under windows: globalParams = new GlobalParams("E:\\Downloads\\poppler\\poppler-data-0.4.5"); and copy  cidfmap to that directory. If You don't do this (and only then), all CJK fonts fall back to MS Mincho. <blockquote cite="mid:4F6C053A.3060808@hiroshima-u.ac.jp" type="cite"> <pre wrap=""> Thus, I'm afraid more efforts are needed for hardwired CID-keyed font fallback. At least, using MS-Mincho is not good idea, and, appropriate warning should be printed. Of course, I'm willing to work for this issue.</pre> </blockquote> Isn't error(-1, "Couldn't find a font for '%s', subst is '%s'", fontName->getCString(), substFontName); an appropiate warning??? Regards, Thomas <blockquote cite="mid:4F6C053A.3060808@hiroshima-u.ac.jp" type="cite"> <pre wrap=""> Regards, mpsuzuki Thomas Freitag wrote: </pre> <blockquote type="cite"> <pre wrap="">Am 03.03.2012 17:40, schrieb suzuki toshiya: </pre> <blockquote type="cite"> <pre wrap="">Hi, I'm quite sorry for that no CJK helpers involves this issue... The required help is a rewrite of your patch to fit the poppler coding convention, and for the maintainers working with Unix systems? If it is possible to do without Visual Studio, I will try. </pre> </blockquote> <pre wrap="">Hopefully done now. As far as I rmember it was Your patch (bug 11413) I just applied to PSOutputDev.cc </pre> <blockquote type="cite"> <pre wrap=""> BTW, yet I've not checked your patch in detail, your patch is trying to convert all missing (non-embedded) CID-keyed CJK fonts by MS Mincho? I think it is not good idea for the users of Adobe-GB1 (PRC, Singapore), Adobe-CNS1 (Taiwan, HongKong), Adobe-Korea1 (ROK). I'm not sure if Ghostscript does so, but even if Ghostscript does so, poppler should not follow it. In fact, the coverage of CJK Ideographs are differently designed to fit to each markets. </pre> </blockquote> <pre wrap="">No, it was not my goal to substitute all CID keyed fonts by MS Mincho. The problem under Windows is just, that if there is no font with the used name installed, poppler tried to replace it with Helvetica, but because this is not a CID font no characters at all will be shown. So I thought that MS Mincho is at least for this case a better idea as a default CID font. But if You copy the cidfmap produced by mkcidfm.ps from ghostscript in the poppler data dir, that substitute font table will be used if (and only if) the font is not embedded and not installed under windows. Hope that fits for CJK users, I thought it was better to use an existing substitution algorithm than do nothing. And as far as I understand mkcidfm.ps it will also try to find suitable fonts for GB1, CNS1 and the others, but I'm no expert for CJK fonts. The cidfmap I produced on my system would use arialuni.ttf for all CJK fonts, but I have just the Microsoft default fonts. Regards, Thomas </pre> <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ poppler mailing list <a class="moz-txt-link-abbreviated" href="mailto:poppler@lists.freedesktop.org">poppler@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/poppler">http://lists.freedesktop.org/mailman/listinfo/poppler</a> </pre> </blockquote> </blockquote> </body> </html>