//======================================================================== // // pdffonts.cc // // Copyright 2001-2003 Glyph & Cog, LLC // //======================================================================== #include #include #include #include #include #include #include "parseargs.h" #include "GString.h" #include "gmem.h" #include "GlobalParams.h" #include "Error.h" #include "Object.h" #include "Dict.h" #include "GfxFont.h" #include "Annot.h" #include "PDFDoc.h" #include "config.h" static char *fontTypeNames[] = { "unknown", "Type 1", "Type 1C", "Type 3", "TrueType", "CID Type 0", "CID Type 0C", "CID TrueType" }; static void scanFonts(Dict *resDict, PDFDoc *doc); static void scanFont(GfxFont *font, PDFDoc *doc); static int firstPage = 1; static int lastPage = 0; static char ownerPassword[33] = "\001"; static char userPassword[33] = "\001"; static char cfgFileName[256] = ""; static GBool printVersion = gFalse; static GBool printHelp = gFalse; static ArgDesc argDesc[] = { {"-f", argInt, &firstPage, 0, "first page to examine"}, {"-l", argInt, &lastPage, 0, "last page to examine"}, {"-opw", argString, ownerPassword, sizeof(ownerPassword), "owner password (for encrypted files)"}, {"-upw", argString, userPassword, sizeof(userPassword), "user password (for encrypted files)"}, {"-cfg", argString, cfgFileName, sizeof(cfgFileName), "configuration file to use in place of .xpdfrc"}, {"-v", argFlag, &printVersion, 0, "print copyright and version info"}, {"-h", argFlag, &printHelp, 0, "print usage information"}, {"-help", argFlag, &printHelp, 0, "print usage information"}, {"--help", argFlag, &printHelp, 0, "print usage information"}, {"-?", argFlag, &printHelp, 0, "print usage information"}, {NULL} }; static Ref *fonts; static int fontsLen; static int fontsSize; int main(int argc, char *argv[]) { PDFDoc *doc; GString *fileName; GString *ownerPW, *userPW; GBool ok; Page *page; Dict *resDict; Annots *annots; Object obj1, obj2; int pg, i; int exitCode; exitCode = 99; // parse args ok = parseArgs(argDesc, &argc, argv); if (!ok || argc != 2 || printVersion || printHelp) { fprintf(stderr, "pdffonts version %s\n", xpdfVersion); fprintf(stderr, "%s\n", xpdfCopyright); if (!printVersion) { printUsage("pdffonts", "", argDesc); } goto err0; } fileName = new GString(argv[1]); // read config file globalParams = new GlobalParams(cfgFileName); // open PDF file if (ownerPassword[0] != '\001') { ownerPW = new GString(ownerPassword); } else { ownerPW = NULL; } if (userPassword[0] != '\001') { userPW = new GString(userPassword); } else { userPW = NULL; } doc = new PDFDoc(fileName, ownerPW, userPW); if (userPW) { delete userPW; } if (ownerPW) { delete ownerPW; } if (!doc->isOk()) { exitCode = 1; goto err1; } // get page range if (firstPage < 1) { firstPage = 1; } if (lastPage < 1 || lastPage > doc->getNumPages()) { lastPage = doc->getNumPages(); } // scan the fonts printf("name type emb sub uni object ID\n"); printf("------------------------------------ ------------ --- --- --- ---------\n"); fonts = NULL; fontsLen = fontsSize = 0; for (pg = firstPage; pg page = doc->getCatalog()->getPage(pg); if ((resDict = page->getResourceDict())) { scanFonts(resDict, doc); } annots = new Annots(doc->getXRef(), doc->getCatalog(), page->getAnnots(&obj1)); obj1.free(); for (i = 0; i < annots->getNumAnnots(); ++i) { if (annots->getAnnot(i)->getAppearance(&obj1)->isStream()) { obj1.streamGetDict()->lookup("Resources", &obj2); if (obj2.isDict()) { scanFonts(obj2.getDict(), doc); } obj2.free(); } obj1.free(); } delete annots; } exitCode = 0; // clean up gfree(fonts); err1: delete doc; delete globalParams; err0: // check for memory leaks Object::memCheck(stderr); gMemReport(stderr); return exitCode; } static void scanFonts(Dict *resDict, PDFDoc *doc) { Object obj1, obj2, xObjDict, xObj, resObj; Ref r; GfxFontDict *gfxFontDict; GfxFont *font; int i; // scan the fonts in this resource dictionary gfxFontDict = NULL; resDict->lookupNF("Font", &obj1); if (obj1.isRef()) { obj1.fetch(doc->getXRef(), &obj2); if (obj2.isDict()) { r = obj1.getRef(); gfxFontDict = new GfxFontDict(doc->getXRef(), &r, obj2.getDict()); } obj2.free(); } else if (obj1.isDict()) { gfxFontDict = new GfxFontDict(doc->getXRef(), NULL, obj1.getDict()); } if (gfxFontDict) { for (i = 0; i < gfxFontDict->getNumFonts(); ++i) { if ((font = gfxFontDict->getFont(i))) { scanFont(font, doc); } } delete gfxFontDict; } obj1.free(); // recursively scan any resource dictionaries in objects in this // resource dictionary resDict->lookup("XObject", &xObjDict); if (xObjDict.isDict()) { for (i = 0; i < xObjDict.dictGetLength(); ++i) { xObjDict.dictGetVal(i, &xObj); if (xObj.isStream()) { xObj.streamGetDict()->lookup("Resources", &resObj); if (resObj.isDict()) { scanFonts(resObj.getDict(), doc); } resObj.free(); } xObj.free(); } } xObjDict.free(); } static void scanFont(GfxFont *font, PDFDoc *doc) { Ref fontRef, embRef; Object fontObj, toUnicodeObj; GString *name; GBool emb, subset, hasToUnicode; int i; fontRef = *font->getID(); // check for an already-seen font for (i = 0; i < fontsLen; ++i) { if (fontRef.num == fonts[i].num && fontRef.gen == fonts[i].gen) { return; } } // font name name = font->getOrigName(); // check for an embedded font if (font->getType() == fontType3) { emb = gTrue; } else { emb = font->getEmbeddedFontID(&embRef); } // look for a ToUnicode map hasToUnicode = gFalse; if (doc->getXRef()->fetch(fontRef.num, fontRef.gen, &fontObj)->isDict()) { hasToUnicode = fontObj.dictLookup("ToUnicode", &toUnicodeObj)->isStream(); toUnicodeObj.free(); } fontObj.free(); // check for a font subset name: capital letters followed by a '+' // sign subset = gFalse; if (name) { for (i = 0; i < name->getLength(); ++i) { if (name->getChar(i) < 'A' || name->getChar(i) > 'Z') { break; } } subset = i > 0 && i < name->getLength() && name->getChar(i) == '+'; } // print the font info printf("%-36s %-12s %-3s %-3s %-3s", name ? name->getCString() : "[none]", fontTypeNames[font->getType()], emb ? "yes" : "no", subset ? "yes" : "no", hasToUnicode ? "yes" : "no"); if (fontRef.gen >= 100000) { printf(" [none]\n"); } else { printf(" %6d %2d\n", fontRef.num, fontRef.gen); } // add this font to the list if (fontsLen == fontsSize) { fontsSize += 32; fonts = (Ref *)greallocn(fonts, fontsSize, sizeof(Ref)); } fonts[fontsLen++] = *font->getID(); }
