| //======================================================================== |
| // |
| // pdftotext.cc |
| // |
| // Copyright 1997-2003 Glyph & Cog, LLC |
| // |
| // Modified for Debian by Hamish Moffatt, 22 May 2002. |
| // |
| //======================================================================== |
| |
| //======================================================================== |
| // |
| // Modified under the Poppler project - http://poppler.freedesktop.org |
| // |
| // All changes made under the Poppler project to this file are licensed |
| // under GPL version 2 or later |
| // |
| // Copyright (C) 2006 Dominic Lachowicz <cinamod@hotmail.com> |
| // Copyright (C) 2007-2008, 2010, 2011, 2017, 2018 Albert Astals Cid <aacid@kde.org> |
| // Copyright (C) 2009 Jan Jockusch <jan@jockusch.de> |
| // Copyright (C) 2010, 2013 Hib Eris <hib@hiberis.nl> |
| // Copyright (C) 2010 Kenneth Berland <ken@hero.com> |
| // Copyright (C) 2011 Tom Gleason <tom@buildadam.com> |
| // Copyright (C) 2011 Steven Murdoch <Steven.Murdoch@cl.cam.ac.uk> |
| // Copyright (C) 2013 Yury G. Kudryashov <urkud.urkud@gmail.com> |
| // Copyright (C) 2013 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp> |
| // Copyright (C) 2015 Jeremy Echols <jechols@uoregon.edu> |
| // Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com> |
| // Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich |
| // Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de> |
| // Copyright (C) 2018 Sanchit Anand <sanxchit@gmail.com> |
| // Copyright (C) 2019 Dan Shea <dan.shea@logical-innovations.com> |
| // |
| // To see a description of the changes please see the Changelog file that |
| // came with your tarball or type make ChangeLog if you are building from git |
| // |
| //======================================================================== |
| |
| #include "config.h" |
| #include <poppler-config.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stddef.h> |
| #include <string.h> |
| #include "parseargs.h" |
| #include "printencodings.h" |
| #include "goo/GooString.h" |
| #include "goo/gmem.h" |
| #include "GlobalParams.h" |
| #include "Object.h" |
| #include "Stream.h" |
| #include "Array.h" |
| #include "Dict.h" |
| #include "XRef.h" |
| #include "Catalog.h" |
| #include "Page.h" |
| #include "PDFDoc.h" |
| #include "PDFDocFactory.h" |
| #include "TextOutputDev.h" |
| #include "CharTypes.h" |
| #include "UnicodeMap.h" |
| #include "PDFDocEncoding.h" |
| #include "Error.h" |
| #include <string> |
| #include <sstream> |
| #include <iomanip> |
| #include "Win32Console.h" |
| |
| static void printInfoString(FILE *f, Dict *infoDict, const char *key, |
| const char *text1, const char *text2, UnicodeMap *uMap); |
| static void printInfoDate(FILE *f, Dict *infoDict, const char *key, const char *fmt); |
| void printDocBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last); |
| void printWordBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last); |
| |
| static int firstPage = 1; |
| static int lastPage = 0; |
| static double resolution = 72.0; |
| static int x = 0; |
| static int y = 0; |
| static int w = 0; |
| static int h = 0; |
| static bool bbox = false; |
| static bool bboxLayout = false; |
| static bool physLayout = false; |
| static double fixedPitch = 0; |
| static bool rawOrder = false; |
| static bool discardDiag = false; |
| static bool htmlMeta = false; |
| static char textEncName[128] = ""; |
| static char textEOL[16] = ""; |
| static bool noPageBreaks = false; |
| static char ownerPassword[33] = "\001"; |
| static char userPassword[33] = "\001"; |
| static bool quiet = false; |
| static bool printVersion = false; |
| static bool printHelp = false; |
| static bool printEnc = false; |
| |
| static const ArgDesc argDesc[] = { |
| {"-f", argInt, &firstPage, 0, |
| "first page to convert"}, |
| {"-l", argInt, &lastPage, 0, |
| "last page to convert"}, |
| {"-r", argFP, &resolution, 0, |
| "resolution, in DPI (default is 72)"}, |
| {"-x", argInt, &x, 0, |
| "x-coordinate of the crop area top left corner"}, |
| {"-y", argInt, &y, 0, |
| "y-coordinate of the crop area top left corner"}, |
| {"-W", argInt, &w, 0, |
| "width of crop area in pixels (default is 0)"}, |
| {"-H", argInt, &h, 0, |
| "height of crop area in pixels (default is 0)"}, |
| {"-layout", argFlag, &physLayout, 0, |
| "maintain original physical layout"}, |
| {"-fixed", argFP, &fixedPitch, 0, |
| "assume fixed-pitch (or tabular) text"}, |
| {"-raw", argFlag, &rawOrder, 0, |
| "keep strings in content stream order"}, |
| {"-nodiag", argFlag, &discardDiag, 0, |
| "discard diagonal text"}, |
| {"-htmlmeta", argFlag, &htmlMeta, 0, |
| "generate a simple HTML file, including the meta information"}, |
| {"-enc", argString, textEncName, sizeof(textEncName), |
| "output text encoding name"}, |
| {"-listenc",argFlag, &printEnc, 0, |
| "list available encodings"}, |
| {"-eol", argString, textEOL, sizeof(textEOL), |
| "output end-of-line convention (unix, dos, or mac)"}, |
| {"-nopgbrk", argFlag, &noPageBreaks, 0, |
| "don't insert page breaks between pages"}, |
| {"-bbox", argFlag, &bbox, 0, |
| "output bounding box for each word and page size to html. Sets -htmlmeta"}, |
| {"-bbox-layout", argFlag, &bboxLayout, 0, |
| "like -bbox but with extra layout bounding box data. Sets -htmlmeta"}, |
| {"-opw", argString, ownerPassword, sizeof(ownerPassword), |
| "owner password (for encrypted files)"}, |
| {"-upw", argString, userPassword, sizeof(userPassword), |
| "user password (for encrypted files)"}, |
| {"-q", argFlag, &quiet, 0, |
| "don't print any messages or errors"}, |
| {"-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"}, |
| {} |
| }; |
| |
| static std::string myStringReplace(const std::string &inString, const std::string &oldToken, const std::string &newToken) { |
| std::string result = inString; |
| size_t foundLoc; |
| int advance = 0; |
| do { |
| foundLoc = result.find(oldToken, advance); |
| if (foundLoc != std::string::npos){ |
| result.replace(foundLoc, oldToken.length(), newToken); |
| advance = foundLoc + newToken.length(); |
| } |
| } while (foundLoc != std::string::npos ); |
| return result; |
| } |
| |
| static std::string myXmlTokenReplace(const char *inString){ |
| std::string myString(inString); |
| myString = myStringReplace(myString, "&", "&" ); |
| myString = myStringReplace(myString, "'", "'" ); |
| myString = myStringReplace(myString, "\"", """ ); |
| myString = myStringReplace(myString, "<", "<" ); |
| myString = myStringReplace(myString, ">", ">" ); |
| return myString; |
| } |
| |
| int main(int argc, char *argv[]) { |
| PDFDoc *doc; |
| GooString *fileName; |
| GooString *textFileName; |
| GooString *ownerPW, *userPW; |
| TextOutputDev *textOut; |
| FILE *f; |
| UnicodeMap *uMap; |
| Object info; |
| bool ok; |
| int exitCode; |
| |
| Win32Console win32Console(&argc, &argv); |
| exitCode = 99; |
| |
| // parse args |
| ok = parseArgs(argDesc, &argc, argv); |
| if (bboxLayout) { |
| bbox = true; |
| } |
| if (bbox) { |
| htmlMeta = true; |
| } |
| if (!ok || (argc < 2 && !printEnc) || argc > 3 || printVersion || printHelp) { |
| fprintf(stderr, "pdftotext version %s\n", PACKAGE_VERSION); |
| fprintf(stderr, "%s\n", popplerCopyright); |
| fprintf(stderr, "%s\n", xpdfCopyright); |
| if (!printVersion) { |
| printUsage("pdftotext", "<PDF-file> [<text-file>]", argDesc); |
| } |
| if (printVersion || printHelp) |
| exitCode = 0; |
| goto err0; |
| } |
| |
| // read config file |
| globalParams = new GlobalParams(); |
| |
| if (printEnc) { |
| printEncodings(); |
| delete globalParams; |
| exitCode = 0; |
| goto err0; |
| } |
| |
| fileName = new GooString(argv[1]); |
| if (fixedPitch) { |
| physLayout = true; |
| } |
| |
| if (textEncName[0]) { |
| globalParams->setTextEncoding(textEncName); |
| } |
| if (textEOL[0]) { |
| if (!globalParams->setTextEOL(textEOL)) { |
| fprintf(stderr, "Bad '-eol' value on command line\n"); |
| } |
| } |
| if (noPageBreaks) { |
| globalParams->setTextPageBreaks(false); |
| } |
| if (quiet) { |
| globalParams->setErrQuiet(quiet); |
| } |
| |
| // get mapping to output encoding |
| if (!(uMap = globalParams->getTextEncoding())) { |
| error(errCommandLine, -1, "Couldn't get text encoding"); |
| delete fileName; |
| goto err1; |
| } |
| |
| // open PDF file |
| if (ownerPassword[0] != '\001') { |
| ownerPW = new GooString(ownerPassword); |
| } else { |
| ownerPW = nullptr; |
| } |
| if (userPassword[0] != '\001') { |
| userPW = new GooString(userPassword); |
| } else { |
| userPW = nullptr; |
| } |
| |
| if (fileName->cmp("-") == 0) { |
| delete fileName; |
| fileName = new GooString("fd://0"); |
| } |
| |
| doc = PDFDocFactory().createPDFDoc(*fileName, ownerPW, userPW); |
| |
| if (userPW) { |
| delete userPW; |
| } |
| if (ownerPW) { |
| delete ownerPW; |
| } |
| if (!doc->isOk()) { |
| exitCode = 1; |
| goto err2; |
| } |
| |
| #ifdef ENFORCE_PERMISSIONS |
| // check for copy permission |
| if (!doc->okToCopy()) { |
| error(errNotAllowed, -1, "Copying of text from this document is not allowed."); |
| exitCode = 3; |
| goto err2; |
| } |
| #endif |
| |
| // construct text file name |
| if (argc == 3) { |
| textFileName = new GooString(argv[2]); |
| } else if (fileName->cmp("fd://0") == 0) { |
| error(errCommandLine, -1, "You have to provide an output filename when reading from stdin."); |
| goto err2; |
| } else { |
| const char *p = fileName->c_str() + fileName->getLength() - 4; |
| if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")) { |
| textFileName = new GooString(fileName->c_str(), |
| fileName->getLength() - 4); |
| } else { |
| textFileName = fileName->copy(); |
| } |
| textFileName->append(htmlMeta ? ".html" : ".txt"); |
| } |
| |
| // get page range |
| if (firstPage < 1) { |
| firstPage = 1; |
| } |
| if (lastPage < 1 || lastPage > doc->getNumPages()) { |
| lastPage = doc->getNumPages(); |
| } |
| if (lastPage < firstPage) { |
| error(errCommandLine, -1, |
| "Wrong page range given: the first page ({0:d}) can not be after the last page ({1:d}).", |
| firstPage, lastPage); |
| goto err3; |
| } |
| |
| // write HTML header |
| if (htmlMeta) { |
| if (!textFileName->cmp("-")) { |
| f = stdout; |
| } else { |
| if (!(f = fopen(textFileName->c_str(), "wb"))) { |
| error(errIO, -1, "Couldn't open text file '{0:t}'", textFileName); |
| exitCode = 2; |
| goto err3; |
| } |
| } |
| fputs("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">", f); |
| fputs("<html xmlns=\"http://www.w3.org/1999/xhtml\">\n", f); |
| fputs("<head>\n", f); |
| info = doc->getDocInfo(); |
| if (info.isDict()) { |
| Object obj = info.getDict()->lookup("Title"); |
| if (obj.isString()) { |
| printInfoString(f, info.getDict(), "Title", "<title>", "</title>\n", uMap); |
| } else { |
| fputs("<title></title>\n", f); |
| } |
| printInfoString(f, info.getDict(), "Subject", |
| "<meta name=\"Subject\" content=\"", "\"/>\n", uMap); |
| printInfoString(f, info.getDict(), "Keywords", |
| "<meta name=\"Keywords\" content=\"", "\"/>\n", uMap); |
| printInfoString(f, info.getDict(), "Author", |
| "<meta name=\"Author\" content=\"", "\"/>\n", uMap); |
| printInfoString(f, info.getDict(), "Creator", |
| "<meta name=\"Creator\" content=\"", "\"/>\n", uMap); |
| printInfoString(f, info.getDict(), "Producer", |
| "<meta name=\"Producer\" content=\"", "\"/>\n", uMap); |
| printInfoDate(f, info.getDict(), "CreationDate", |
| "<meta name=\"CreationDate\" content=\"\"/>\n"); |
| printInfoDate(f, info.getDict(), "LastModifiedDate", |
| "<meta name=\"ModDate\" content=\"\"/>\n"); |
| } |
| fputs("</head>\n", f); |
| fputs("<body>\n", f); |
| if (!bbox) { |
| fputs("<pre>\n", f); |
| if (f != stdout) { |
| fclose(f); |
| } |
| } |
| } |
| |
| // write text file |
| if (htmlMeta && bbox) { // htmlMeta && is superfluous but makes gcc happier |
| textOut = new TextOutputDev(nullptr, physLayout, fixedPitch, rawOrder, htmlMeta, discardDiag); |
| |
| if (textOut->isOk()) { |
| if (bboxLayout) { |
| printDocBBox(f, doc, textOut, firstPage, lastPage); |
| } |
| else { |
| printWordBBox(f, doc, textOut, firstPage, lastPage); |
| } |
| } |
| if (f != stdout) { |
| fclose(f); |
| } |
| } else { |
| textOut = new TextOutputDev(textFileName->c_str(), |
| physLayout, fixedPitch, rawOrder, htmlMeta, discardDiag); |
| if (textOut->isOk()) { |
| if ((w==0) && (h==0) && (x==0) && (y==0)) { |
| doc->displayPages(textOut, firstPage, lastPage, resolution, resolution, 0, |
| true, false, false); |
| } else { |
| |
| for (int page = firstPage; page <= lastPage; ++page) { |
| doc->displayPageSlice(textOut, page, resolution, resolution, 0, |
| true, false, false, |
| x, y, w, h); |
| } |
| } |
| |
| } else { |
| delete textOut; |
| exitCode = 2; |
| goto err3; |
| } |
| } |
| delete textOut; |
| |
| // write end of HTML file |
| if (htmlMeta) { |
| if (!textFileName->cmp("-")) { |
| f = stdout; |
| } else { |
| if (!(f = fopen(textFileName->c_str(), "ab"))) { |
| error(errIO, -1, "Couldn't open text file '{0:t}'", textFileName); |
| exitCode = 2; |
| goto err3; |
| } |
| } |
| if (!bbox) fputs("</pre>\n", f); |
| fputs("</body>\n", f); |
| fputs("</html>\n", f); |
| if (f != stdout) { |
| fclose(f); |
| } |
| } |
| |
| exitCode = 0; |
| |
| // clean up |
| err3: |
| delete textFileName; |
| err2: |
| delete doc; |
| delete fileName; |
| uMap->decRefCnt(); |
| err1: |
| delete globalParams; |
| err0: |
| |
| return exitCode; |
| } |
| |
| static void printInfoString(FILE *f, Dict *infoDict, const char *key, |
| const char *text1, const char *text2, UnicodeMap *uMap) { |
| const GooString *s1; |
| bool isUnicode; |
| Unicode u; |
| char buf[9]; |
| int i, n; |
| |
| Object obj = infoDict->lookup(key); |
| if (obj.isString()) { |
| fputs(text1, f); |
| s1 = obj.getString(); |
| if ((s1->getChar(0) & 0xff) == 0xfe && |
| (s1->getChar(1) & 0xff) == 0xff) { |
| isUnicode = true; |
| i = 2; |
| } else { |
| isUnicode = false; |
| i = 0; |
| } |
| while (i < obj.getString()->getLength()) { |
| if (isUnicode) { |
| u = ((s1->getChar(i) & 0xff) << 8) | |
| (s1->getChar(i+1) & 0xff); |
| i += 2; |
| } else { |
| u = pdfDocEncoding[s1->getChar(i) & 0xff]; |
| ++i; |
| } |
| n = uMap->mapUnicode(u, buf, sizeof(buf)); |
| buf[n] = '\0'; |
| const std::string myString = myXmlTokenReplace(buf); |
| fputs(myString.c_str(), f); |
| } |
| fputs(text2, f); |
| } |
| } |
| |
| static void printInfoDate(FILE *f, Dict *infoDict, const char *key, const char *fmt) { |
| Object obj = infoDict->lookup(key); |
| if (obj.isString()) { |
| const char *s = obj.getString()->c_str(); |
| if (s[0] == 'D' && s[1] == ':') { |
| s += 2; |
| } |
| fprintf(f, fmt, s); |
| } |
| } |
| |
| static void printLine(FILE *f, TextLine *line) { |
| double xMin, yMin, xMax, yMax; |
| double lineXMin = 0, lineYMin = 0, lineXMax = 0, lineYMax = 0; |
| TextWord *word; |
| std::stringstream wordXML; |
| wordXML << std::fixed << std::setprecision(6); |
| |
| for (word = line->getWords(); word; word = word->getNext()) { |
| word->getBBox(&xMin, &yMin, &xMax, &yMax); |
| |
| if (lineXMin == 0 || lineXMin > xMin) lineXMin = xMin; |
| if (lineYMin == 0 || lineYMin > yMin) lineYMin = yMin; |
| if (lineXMax < xMax) lineXMax = xMax; |
| if (lineYMax < yMax) lineYMax = yMax; |
| |
| GooString *wordText = word->getText(); |
| const std::string myString = myXmlTokenReplace(wordText->c_str()); |
| wordXML << " <word xMin=\"" << xMin << "\" yMin=\"" << yMin << "\" xMax=\"" << |
| xMax << "\" yMax=\"" << yMax << "\">" << myString << "</word>\n"; |
| delete wordText; |
| } |
| fprintf(f, " <line xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">\n", |
| lineXMin, lineYMin, lineXMax, lineYMax); |
| fputs(wordXML.str().c_str(), f); |
| fputs(" </line>\n", f); |
| } |
| |
| void printDocBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last) { |
| double xMin, yMin, xMax, yMax; |
| TextFlow *flow; |
| TextBlock *blk; |
| TextLine *line; |
| |
| fprintf(f, "<doc>\n"); |
| for (int page = first; page <= last; ++page) { |
| fprintf(f, " <page width=\"%f\" height=\"%f\">\n",doc->getPageMediaWidth(page), doc->getPageMediaHeight(page)); |
| doc->displayPage(textOut, page, resolution, resolution, 0, true, false, false); |
| for (flow = textOut->getFlows(); flow; flow = flow->getNext()) { |
| fprintf(f, " <flow>\n"); |
| for (blk = flow->getBlocks(); blk; blk = blk->getNext()) { |
| blk->getBBox(&xMin, &yMin, &xMax, &yMax); |
| fprintf(f, " <block xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">\n", xMin, yMin, xMax, yMax); |
| for (line = blk->getLines(); line; line = line->getNext()) { |
| printLine(f, line); |
| } |
| fprintf(f, " </block>\n"); |
| } |
| fprintf(f, " </flow>\n"); |
| } |
| fprintf(f, " </page>\n"); |
| } |
| fprintf(f, "</doc>\n"); |
| } |
| |
| void printWordBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last) { |
| fprintf(f, "<doc>\n"); |
| for (int page = first; page <= last; ++page) { |
| fprintf(f, " <page width=\"%f\" height=\"%f\">\n",doc->getPageMediaWidth(page), doc->getPageMediaHeight(page)); |
| doc->displayPage(textOut, page, resolution, resolution, 0, true, false, false); |
| TextWordList *wordlist = textOut->makeWordList(); |
| const int word_length = wordlist != nullptr ? wordlist->getLength() : 0; |
| TextWord *word; |
| double xMinA, yMinA, xMaxA, yMaxA; |
| if (word_length == 0) |
| fprintf(stderr, "no word list\n"); |
| |
| for (int i = 0; i < word_length; ++i) { |
| word = wordlist->get(i); |
| word->getBBox(&xMinA, &yMinA, &xMaxA, &yMaxA); |
| const std::string myString = myXmlTokenReplace(word->getText()->c_str()); |
| fprintf(f," <word xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">%s</word>\n", xMinA, yMinA, xMaxA, yMaxA, myString.c_str()); |
| } |
| fprintf(f, " </page>\n"); |
| delete wordlist; |
| } |
| fprintf(f, "</doc>\n"); |
| } |
