1 //========================================================================
2 //
3 // pdftocairo.cc
4 //
5 // Copyright 2003 Glyph & Cog, LLC
6 //
7 //========================================================================
8
9 //========================================================================
10 //
11 // Modified under the Poppler project - http://poppler.freedesktop.org
12 //
13 // All changes made under the Poppler project to this file are licensed
14 // under GPL version 2 or later
15 //
16 // Copyright (C) 2007 Ilmari Heikkinen <ilmari.heikkinen@gmail.com>
17 // Copyright (C) 2008 Richard Airlie <richard.airlie@maglabs.net>
18 // Copyright (C) 2009 Michael K. Johnson <a1237@danlj.org>
19 // Copyright (C) 2009 Shen Liang <shenzhuxi@gmail.com>
20 // Copyright (C) 2009 Stefan Thomas <thomas@eload24.com>
21 // Copyright (C) 2009, 2010, 2017-2020 Albert Astals Cid <aacid@kde.org>
22 // Copyright (C) 2010, 2011-2017 Adrian Johnson <ajohnson@redneon.com>
23 // Copyright (C) 2010, 2014 Hib Eris <hib@hiberis.nl>
24 // Copyright (C) 2010 Jonathan Liu <net147@gmail.com>
25 // Copyright (C) 2010 William Bader <williambader@hotmail.com>
26 // Copyright (C) 2011 Thomas Freitag <Thomas.Freitag@alfa.de>
27 // Copyright (C) 2011, 2015 Carlos Garcia Campos <carlosgc@gnome.org>
28 // Copyright (C) 2012 Koji Otani <sho@bbr.jp>
29 // Copyright (C) 2013 Lu Wang <coolwanglu@gmail.com>
30 // Copyright (C) 2013, 2017 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp>
31 // Copyright (C) 2014 Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
32 // Copyright (C) 2016 Jason Crain <jason@aquaticape.us>
33 // Copyright (C) 2018 Martin Packman <gzlist@googlemail.com>
34 // Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
35 // Copyright (C) 2019, 2020 Oliver Sander <oliver.sander@tu-dresden.de>
36 // Copyright (C) 2019 Kris Jurka <jurka@ejurka.com>
37 // Copyright (C) 2020, 2021 Oliver Sander <oliver.sander@tu-dresden.de>
38 // Copyright (C) 2020 Philipp Knechtges <philipp-dev@knechtges.com>
39 // Copyright (C) 2020 Salvo Miosi <salvo.ilmiosi@gmail.com>
40 // Copyright (C) 2021 Peter Williams <peter@newton.cx>
41 // Copyright (C) 2021 Christian Persch <chpe@src.gnome.org>
42 //
43 // To see a description of the changes please see the Changelog file that
44 // came with your tarball or type make ChangeLog if you are building from git
45 //
46 //========================================================================
47
48 #include "config.h"
49 #include <poppler-config.h>
50 #include <cstdint>
51 #include <cstdio>
52 #include <cmath>
53 #include <cstring>
54 #include <fcntl.h>
55 #if defined(_WIN32) || defined(__CYGWIN__)
56 # include <io.h> // for _setmode
57 #endif
58 #include "parseargs.h"
59 #include "goo/gmem.h"
60 #include "goo/GooString.h"
61 #include "goo/ImgWriter.h"
62 #include "goo/JpegWriter.h"
63 #include "goo/PNGWriter.h"
64 #include "goo/TiffWriter.h"
65 #include "GlobalParams.h"
66 #include "Object.h"
67 #include "PDFDoc.h"
68 #include "PDFDocFactory.h"
69 #include "CairoOutputDev.h"
70 #include "Win32Console.h"
71 #include "numberofcharacters.h"
72 #ifdef USE_CMS
73 # include <lcms2.h>
74 #endif
75 #include <cairo.h>
76 #ifdef CAIRO_HAS_PS_SURFACE
77 # include <cairo-ps.h>
78 #endif
79 #ifdef CAIRO_HAS_PDF_SURFACE
80 # include <cairo-pdf.h>
81 #endif
82 #ifdef CAIRO_HAS_SVG_SURFACE
83 # include <cairo-svg.h>
84 #endif
85
86 #include "pdftocairo-win32.h"
87
88 static bool png = false;
89 static bool jpeg = false;
90 static bool ps = false;
91 static bool eps = false;
92 static bool pdf = false;
93 static bool printToWin32 = false;
94 static bool printdlg = false;
95 static bool svg = false;
96 static bool tiff = false;
97
98 static int firstPage = 1;
99 static int lastPage = 0;
100 static bool printOnlyOdd = false;
101 static bool printOnlyEven = false;
102 static bool singleFile = false;
103 static double resolution = 0.0;
104 static double x_resolution = 150.0;
105 static double y_resolution = 150.0;
106 static int scaleTo = 0;
107 static int x_scaleTo = 0;
108 static int y_scaleTo = 0;
109 static int crop_x = 0;
110 static int crop_y = 0;
111 static int crop_w = 0;
112 static int crop_h = 0;
113 static int sz = 0;
114 static bool useCropBox = false;
115 static bool mono = false;
116 static bool gray = false;
117 static bool transp = false;
118 static GooString antialias;
119 static GooString icc;
120
121 static bool level2 = false;
122 static bool level3 = false;
123 static bool origPageSizes = false;
124 static char paperSize[15] = "";
125 static int paperWidth = -1;
126 static int paperHeight = -1;
127 static bool noCrop = false;
128 static bool expand = false;
129 static bool noShrink = false;
130 static bool noCenter = false;
131 static bool duplex = false;
132 static char tiffCompressionStr[16] = "";
133
134 static char ownerPassword[33] = "";
135 static char userPassword[33] = "";
136 static bool quiet = false;
137 static bool printVersion = false;
138 static bool printHelp = false;
139
140 static GooString jpegOpt;
141 static int jpegQuality = -1;
142 static bool jpegProgressive = false;
143 static bool jpegOptimize = false;
144
145 static GooString printer;
146 static GooString printOpt;
147 #ifdef CAIRO_HAS_WIN32_SURFACE
148 static bool setupdlg = false;
149 #endif
150
151 static const ArgDesc argDesc[] = {
152 #ifdef ENABLE_LIBPNG
153 { "-png", argFlag, &png, 0, "generate a PNG file" },
154 #endif
155 #ifdef ENABLE_LIBJPEG
156 { "-jpeg", argFlag, &jpeg, 0, "generate a JPEG file" },
157 { "-jpegopt", argGooString, &jpegOpt, 0, "jpeg options, with format <opt1>=<val1>[,<optN>=<valN>]*" },
158 #endif
159 #ifdef ENABLE_LIBTIFF
160 { "-tiff", argFlag, &tiff, 0, "generate a TIFF file" },
161 { "-tiffcompression", argString, tiffCompressionStr, sizeof(tiffCompressionStr), "set TIFF compression: none, packbits, jpeg, lzw, deflate" },
162 #endif
163 #ifdef CAIRO_HAS_PS_SURFACE
164 { "-ps", argFlag, &ps, 0, "generate PostScript file" },
165 { "-eps", argFlag, &eps, 0, "generate Encapsulated PostScript (EPS)" },
166 #endif
167 #ifdef CAIRO_HAS_PDF_SURFACE
168 { "-pdf", argFlag, &pdf, 0, "generate a PDF file" },
169 #endif
170 #ifdef CAIRO_HAS_SVG_SURFACE
171 { "-svg", argFlag, &svg, 0, "generate a Scalable Vector Graphics (SVG) file" },
172 #endif
173 #ifdef CAIRO_HAS_WIN32_SURFACE
174 { "-print", argFlag, &printToWin32, 0, "print to a Windows printer" },
175 { "-printdlg", argFlag, &printdlg, 0, "show Windows print dialog and print" },
176 { "-printer", argGooString, &printer, 0, "printer name or use default if this option is not specified" },
177 { "-printopt", argGooString, &printOpt, 0, "printer options, with format <opt1>=<val1>[,<optN>=<valN>]*" },
178 { "-setupdlg", argFlag, &setupdlg, 0, "show printer setup dialog before printing" },
179 #endif
180
181 { "-f", argInt, &firstPage, 0, "first page to print" },
182 { "-l", argInt, &lastPage, 0, "last page to print" },
183 { "-o", argFlag, &printOnlyOdd, 0, "print only odd pages" },
184 { "-e", argFlag, &printOnlyEven, 0, "print only even pages" },
185 { "-singlefile", argFlag, &singleFile, 0, "write only the first page and do not add digits" },
186
187 { "-r", argFP, &resolution, 0, "resolution, in PPI (default is 150)" },
188 { "-rx", argFP, &x_resolution, 0, "X resolution, in PPI (default is 150)" },
189 { "-ry", argFP, &y_resolution, 0, "Y resolution, in PPI (default is 150)" },
190 { "-scale-to", argInt, &scaleTo, 0, "scales each page to fit within scale-to*scale-to pixel box" },
191 { "-scale-to-x", argInt, &x_scaleTo, 0, "scales each page horizontally to fit in scale-to-x pixels" },
192 { "-scale-to-y", argInt, &y_scaleTo, 0, "scales each page vertically to fit in scale-to-y pixels" },
193
194 { "-x", argInt, &crop_x, 0, "x-coordinate of the crop area top left corner" },
195 { "-y", argInt, &crop_y, 0, "y-coordinate of the crop area top left corner" },
196 { "-W", argInt, &crop_w, 0, "width of crop area in pixels (default is 0)" },
197 { "-H", argInt, &crop_h, 0, "height of crop area in pixels (default is 0)" },
198 { "-sz", argInt, &sz, 0, "size of crop square in pixels (sets W and H)" },
199 { "-cropbox", argFlag, &useCropBox, 0, "use the crop box rather than media box" },
200
201 { "-mono", argFlag, &mono, 0, "generate a monochrome image file (PNG, JPEG)" },
202 { "-gray", argFlag, &gray, 0, "generate a grayscale image file (PNG, JPEG)" },
203 { "-transp", argFlag, &transp, 0, "use a transparent background instead of white (PNG)" },
204 { "-antialias", argGooString, &antialias, 0, "set cairo antialias option" },
205 #ifdef USE_CMS
206 { "-icc", argGooString, &icc, 0, "ICC color profile to use" },
207 #endif
208
209 { "-level2", argFlag, &level2, 0, "generate Level 2 PostScript (PS, EPS)" },
210 { "-level3", argFlag, &level3, 0, "generate Level 3 PostScript (PS, EPS)" },
211 { "-origpagesizes", argFlag, &origPageSizes, 0, "conserve original page sizes (PS, PDF, SVG)" },
212 { "-paper", argString, paperSize, sizeof(paperSize), "paper size (letter, legal, A4, A3, match)" },
213 { "-paperw", argInt, &paperWidth, 0, "paper width, in points" },
214 { "-paperh", argInt, &paperHeight, 0, "paper height, in points" },
215 { "-nocrop", argFlag, &noCrop, 0, "don't crop pages to CropBox" },
216 { "-expand", argFlag, &expand, 0, "expand pages smaller than the paper size" },
217 { "-noshrink", argFlag, &noShrink, 0, "don't shrink pages larger than the paper size" },
218 { "-nocenter", argFlag, &noCenter, 0, "don't center pages smaller than the paper size" },
219 { "-duplex", argFlag, &duplex, 0, "enable duplex printing" },
220
221 { "-opw", argString, ownerPassword, sizeof(ownerPassword), "owner password (for encrypted files)" },
222 { "-upw", argString, userPassword, sizeof(userPassword), "user password (for encrypted files)" },
223
224 { "-q", argFlag, &quiet, 0, "don't print any messages or errors" },
225 { "-v", argFlag, &printVersion, 0, "print copyright and version info" },
226 { "-h", argFlag, &printHelp, 0, "print usage information" },
227 { "-help", argFlag, &printHelp, 0, "print usage information" },
228 { "--help", argFlag, &printHelp, 0, "print usage information" },
229 { "-?", argFlag, &printHelp, 0, "print usage information" },
230 {}
231 };
232
233 static cairo_surface_t *surface;
234 static bool printing;
235 static FILE *output_file;
236 static bool usePDFPageSize;
237 static cairo_antialias_t antialiasEnum = CAIRO_ANTIALIAS_DEFAULT;
238
239 #ifdef USE_CMS
240 static unsigned char *icc_data;
241 static int icc_data_size;
242 static GfxLCMSProfilePtr profile;
243 #endif
244
245 struct AntialiasOption
246 {
247 const char *name;
248 cairo_antialias_t value;
249 };
250
251 static const AntialiasOption antialiasOptions[] = {
252 { "default", CAIRO_ANTIALIAS_DEFAULT }, { "none", CAIRO_ANTIALIAS_NONE }, { "gray", CAIRO_ANTIALIAS_GRAY }, { "subpixel", CAIRO_ANTIALIAS_SUBPIXEL },
253 { "fast", CAIRO_ANTIALIAS_FAST }, { "good", CAIRO_ANTIALIAS_GOOD }, { "best", CAIRO_ANTIALIAS_BEST }, { nullptr, CAIRO_ANTIALIAS_DEFAULT },
254 };
255
parseAntialiasOption()256 static bool parseAntialiasOption()
257 {
258 const AntialiasOption *option = antialiasOptions;
259 while (option->name) {
260 if (antialias.cmp(option->name) == 0) {
261 antialiasEnum = option->value;
262 return true;
263 }
264 option++;
265 }
266
267 fprintf(stderr, "Error: Invalid antialias option \"%s\"\n", antialias.c_str());
268 fprintf(stderr, "Valid options are:\n");
269 option = antialiasOptions;
270 while (option->name) {
271 fprintf(stderr, " %s\n", option->name);
272 option++;
273 }
274 return false;
275 }
276
parseJpegOptions()277 static bool parseJpegOptions()
278 {
279 // jpegOpt format is: <opt1>=<val1>,<opt2>=<val2>,...
280 const char *nextOpt = jpegOpt.c_str();
281 while (nextOpt && *nextOpt) {
282 const char *comma = strchr(nextOpt, ',');
283 GooString opt;
284 if (comma) {
285 opt.Set(nextOpt, comma - nextOpt);
286 nextOpt = comma + 1;
287 } else {
288 opt.Set(nextOpt);
289 nextOpt = nullptr;
290 }
291 // here opt is "<optN>=<valN> "
292 const char *equal = strchr(opt.c_str(), '=');
293 if (!equal) {
294 fprintf(stderr, "Unknown jpeg option \"%s\"\n", opt.c_str());
295 return false;
296 }
297 int iequal = equal - opt.c_str();
298 GooString value(&opt, iequal + 1, opt.getLength() - iequal - 1);
299 opt.del(iequal, opt.getLength() - iequal);
300 // here opt is "<optN>" and value is "<valN>"
301
302 if (opt.cmp("quality") == 0) {
303 if (!isInt(value.c_str())) {
304 fprintf(stderr, "Invalid jpeg quality\n");
305 return false;
306 }
307 jpegQuality = atoi(value.c_str());
308 if (jpegQuality < 0 || jpegQuality > 100) {
309 fprintf(stderr, "jpeg quality must be between 0 and 100\n");
310 return false;
311 }
312 } else if (opt.cmp("progressive") == 0) {
313 jpegProgressive = false;
314 if (value.cmp("y") == 0) {
315 jpegProgressive = true;
316 } else if (value.cmp("n") != 0) {
317 fprintf(stderr, "jpeg progressive option must be \"y\" or \"n\"\n");
318 return false;
319 }
320 } else if (opt.cmp("optimize") == 0 || opt.cmp("optimise") == 0) {
321 jpegOptimize = false;
322 if (value.cmp("y") == 0) {
323 jpegOptimize = true;
324 } else if (value.cmp("n") != 0) {
325 fprintf(stderr, "jpeg optimize option must be \"y\" or \"n\"\n");
326 return false;
327 }
328 } else {
329 fprintf(stderr, "Unknown jpeg option \"%s\"\n", opt.c_str());
330 return false;
331 }
332 }
333 return true;
334 }
335
writePageImage(GooString * filename)336 static void writePageImage(GooString *filename)
337 {
338 ImgWriter *writer = nullptr;
339 FILE *file;
340 int height, width, stride;
341 unsigned char *data;
342
343 if (png) {
344 #ifdef ENABLE_LIBPNG
345 if (transp)
346 writer = new PNGWriter(PNGWriter::RGBA);
347 else if (gray)
348 writer = new PNGWriter(PNGWriter::GRAY);
349 else if (mono)
350 writer = new PNGWriter(PNGWriter::MONOCHROME);
351 else
352 writer = new PNGWriter(PNGWriter::RGB);
353
354 # ifdef USE_CMS
355 if (icc_data) {
356 cmsUInt8Number profileID[17];
357 profileID[16] = '\0';
358
359 cmsGetHeaderProfileID(profile.get(), profileID);
360 static_cast<PNGWriter *>(writer)->setICCProfile(reinterpret_cast<char *>(profileID), icc_data, icc_data_size);
361 } else {
362 static_cast<PNGWriter *>(writer)->setSRGBProfile();
363 }
364 # endif
365 #endif
366
367 } else if (jpeg) {
368 #ifdef ENABLE_LIBJPEG
369 if (gray)
370 writer = new JpegWriter(JpegWriter::GRAY);
371 else
372 writer = new JpegWriter(JpegWriter::RGB);
373
374 static_cast<JpegWriter *>(writer)->setOptimize(jpegOptimize);
375 static_cast<JpegWriter *>(writer)->setProgressive(jpegProgressive);
376 if (jpegQuality >= 0)
377 static_cast<JpegWriter *>(writer)->setQuality(jpegQuality);
378 #endif
379 } else if (tiff) {
380 #ifdef ENABLE_LIBTIFF
381 if (transp)
382 writer = new TiffWriter(TiffWriter::RGBA_PREMULTIPLIED);
383 else if (gray)
384 writer = new TiffWriter(TiffWriter::GRAY);
385 else if (mono)
386 writer = new TiffWriter(TiffWriter::MONOCHROME);
387 else
388 writer = new TiffWriter(TiffWriter::RGB);
389 static_cast<TiffWriter *>(writer)->setCompressionString(tiffCompressionStr);
390 #endif
391 }
392 if (!writer)
393 return;
394
395 if (filename->cmp("fd://0") == 0) {
396 #if defined(_WIN32) || defined(__CYGWIN__)
397 _setmode(fileno(stdout), O_BINARY);
398 #endif
399 file = stdout;
400 } else
401 file = fopen(filename->c_str(), "wb");
402
403 if (!file) {
404 fprintf(stderr, "Error opening output file %s\n", filename->c_str());
405 exit(2);
406 }
407
408 height = cairo_image_surface_get_height(surface);
409 width = cairo_image_surface_get_width(surface);
410 stride = cairo_image_surface_get_stride(surface);
411 cairo_surface_flush(surface);
412 data = cairo_image_surface_get_data(surface);
413
414 if (!writer->init(file, width, height, x_resolution, y_resolution)) {
415 fprintf(stderr, "Error writing %s\n", filename->c_str());
416 exit(2);
417 }
418 unsigned char *row = (unsigned char *)gmallocn(width, 4);
419
420 for (int y = 0; y < height; y++) {
421 uint32_t *pixel = reinterpret_cast<uint32_t *>((data + y * stride));
422 unsigned char *rowp = row;
423 int bit = 7;
424 for (int x = 0; x < width; x++, pixel++) {
425 if (transp) {
426 if (tiff) {
427 // RGBA premultipled format
428 *rowp++ = (*pixel & 0xff0000) >> 16;
429 *rowp++ = (*pixel & 0x00ff00) >> 8;
430 *rowp++ = (*pixel & 0x0000ff) >> 0;
431 *rowp++ = (*pixel & 0xff000000) >> 24;
432 } else {
433 // unpremultiply into RGBA format
434 uint8_t a;
435 a = (*pixel & 0xff000000) >> 24;
436 if (a == 0) {
437 *rowp++ = 0;
438 *rowp++ = 0;
439 *rowp++ = 0;
440 } else {
441 *rowp++ = (((*pixel & 0xff0000) >> 16) * 255 + a / 2) / a;
442 *rowp++ = (((*pixel & 0x00ff00) >> 8) * 255 + a / 2) / a;
443 *rowp++ = (((*pixel & 0x0000ff) >> 0) * 255 + a / 2) / a;
444 }
445 *rowp++ = a;
446 }
447 } else if (gray || mono) {
448 // convert to gray
449 // The PDF Reference specifies the DeviceRGB to DeviceGray conversion as
450 // gray = 0.3*red + 0.59*green + 0.11*blue
451 const int r = (*pixel & 0x00ff0000) >> 16;
452 const int g = (*pixel & 0x0000ff00) >> 8;
453 const int b = (*pixel & 0x000000ff) >> 0;
454 // an arbitrary integer approximation of .3*r + .59*g + .11*b
455 const int grayValue = (r * 19661 + g * 38666 + b * 7209 + 32829) >> 16;
456 if (mono) {
457 if (bit == 7)
458 *rowp = 0;
459 if (grayValue > 127)
460 *rowp |= (1 << bit);
461 bit--;
462 if (bit < 0) {
463 bit = 7;
464 rowp++;
465 }
466 } else {
467 *rowp++ = grayValue;
468 }
469 } else {
470 // copy into RGB format
471 *rowp++ = (*pixel & 0x00ff0000) >> 16;
472 *rowp++ = (*pixel & 0x0000ff00) >> 8;
473 *rowp++ = (*pixel & 0x000000ff) >> 0;
474 }
475 }
476 writer->writeRow(&row);
477 }
478 gfree(row);
479 writer->close();
480 delete writer;
481 if (file == stdout)
482 fflush(file);
483 else
484 fclose(file);
485 }
486
getCropSize(double page_w,double page_h,double * width,double * height)487 static void getCropSize(double page_w, double page_h, double *width, double *height)
488 {
489 int w = crop_w;
490 int h = crop_h;
491
492 if (w == 0)
493 w = (int)ceil(page_w);
494
495 if (h == 0)
496 h = (int)ceil(page_h);
497
498 *width = (crop_x + w > page_w ? (int)ceil(page_w - crop_x) : w);
499 *height = (crop_y + h > page_h ? (int)ceil(page_h - crop_y) : h);
500 }
501
getOutputSize(double page_w,double page_h,double * width,double * height)502 static void getOutputSize(double page_w, double page_h, double *width, double *height)
503 {
504
505 if (printing) {
506 if (usePDFPageSize) {
507 *width = page_w;
508 *height = page_h;
509 } else {
510 if (page_w > page_h) {
511 *width = paperHeight;
512 *height = paperWidth;
513 } else {
514 *width = paperWidth;
515 *height = paperHeight;
516 }
517 }
518 } else {
519 getCropSize(page_w * (x_resolution / 72.0), page_h * (y_resolution / 72.0), width, height);
520 }
521 }
522
getFitToPageTransform(double page_w,double page_h,double paper_w,double paper_h,cairo_matrix_t * m)523 static void getFitToPageTransform(double page_w, double page_h, double paper_w, double paper_h, cairo_matrix_t *m)
524 {
525 double x_scale, y_scale, scale;
526
527 x_scale = paper_w / page_w;
528 y_scale = paper_h / page_h;
529 if (x_scale < y_scale)
530 scale = x_scale;
531 else
532 scale = y_scale;
533
534 if (scale > 1.0 && !expand)
535 scale = 1.0;
536 if (scale < 1.0 && noShrink)
537 scale = 1.0;
538
539 cairo_matrix_init_identity(m);
540 if (!noCenter) {
541 // centre page
542 cairo_matrix_translate(m, (paper_w - page_w * scale) / 2, (paper_h - page_h * scale) / 2);
543 } else if (!svg) {
544 // move to PostScript origin
545 cairo_matrix_translate(m, 0, (paper_h - page_h * scale));
546 }
547 cairo_matrix_scale(m, scale, scale);
548 }
549
writeStream(void * closure,const unsigned char * data,unsigned int length)550 static cairo_status_t writeStream(void *closure, const unsigned char *data, unsigned int length)
551 {
552 FILE *file = (FILE *)closure;
553
554 if (fwrite(data, length, 1, file) == 1)
555 return CAIRO_STATUS_SUCCESS;
556 else
557 return CAIRO_STATUS_WRITE_ERROR;
558 }
559
beginDocument(GooString * inputFileName,GooString * outputFileName,double w,double h)560 static void beginDocument(GooString *inputFileName, GooString *outputFileName, double w, double h)
561 {
562 if (printing) {
563 if (printToWin32) {
564 output_file = nullptr;
565 } else {
566 if (outputFileName->cmp("fd://0") == 0) {
567 #if defined(_WIN32) || defined(__CYGWIN__)
568 _setmode(fileno(stdout), O_BINARY);
569 #endif
570 output_file = stdout;
571 } else {
572 output_file = fopen(outputFileName->c_str(), "wb");
573 if (!output_file) {
574 fprintf(stderr, "Error opening output file %s\n", outputFileName->c_str());
575 exit(2);
576 }
577 }
578 }
579
580 if (ps || eps) {
581 #ifdef CAIRO_HAS_PS_SURFACE
582 surface = cairo_ps_surface_create_for_stream(writeStream, output_file, w, h);
583 if (level2)
584 cairo_ps_surface_restrict_to_level(surface, CAIRO_PS_LEVEL_2);
585 if (eps)
586 cairo_ps_surface_set_eps(surface, 1);
587 if (duplex) {
588 cairo_ps_surface_dsc_comment(surface, "%%Requirements: duplex");
589 cairo_ps_surface_dsc_begin_setup(surface);
590 cairo_ps_surface_dsc_comment(surface, "%%IncludeFeature: *Duplex DuplexNoTumble");
591 }
592 cairo_ps_surface_dsc_begin_page_setup(surface);
593 #endif
594 } else if (pdf) {
595 #ifdef CAIRO_HAS_PDF_SURFACE
596 surface = cairo_pdf_surface_create_for_stream(writeStream, output_file, w, h);
597 #endif
598 } else if (svg) {
599 #ifdef CAIRO_HAS_SVG_SURFACE
600 surface = cairo_svg_surface_create_for_stream(writeStream, output_file, w, h);
601 cairo_svg_surface_restrict_to_version(surface, CAIRO_SVG_VERSION_1_2);
602 #endif
603 }
604 #ifdef CAIRO_HAS_WIN32_SURFACE
605 if (printToWin32)
606 surface = win32BeginDocument(inputFileName, outputFileName);
607 #endif
608 }
609 }
610
beginPage(double * w,double * h)611 static void beginPage(double *w, double *h)
612 {
613 if (printing) {
614 if (ps || eps) {
615 #ifdef CAIRO_HAS_PS_SURFACE
616 if (*w > *h) {
617 cairo_ps_surface_dsc_comment(surface, "%%PageOrientation: Landscape");
618 cairo_ps_surface_set_size(surface, *h, *w);
619 } else {
620 cairo_ps_surface_dsc_comment(surface, "%%PageOrientation: Portrait");
621 cairo_ps_surface_set_size(surface, *w, *h);
622 }
623 #endif
624 }
625
626 #ifdef CAIRO_HAS_PDF_SURFACE
627 if (pdf)
628 cairo_pdf_surface_set_size(surface, *w, *h);
629 #endif
630
631 #ifdef CAIRO_HAS_WIN32_SURFACE
632 if (printToWin32) {
633 bool changePageSize = true;
634 if (setupdlg && !origPageSizes)
635 changePageSize = false;
636 win32BeginPage(w, h, changePageSize, noShrink); // w,h will be changed to actual size used
637 }
638 #endif
639
640 cairo_surface_set_fallback_resolution(surface, x_resolution, y_resolution);
641
642 } else {
643 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, ceil(*w), ceil(*h));
644 }
645 }
646
renderPage(PDFDoc * doc,CairoOutputDev * cairoOut,int pg,double page_w,double page_h,double output_w,double output_h)647 static void renderPage(PDFDoc *doc, CairoOutputDev *cairoOut, int pg, double page_w, double page_h, double output_w, double output_h)
648 {
649 cairo_t *cr;
650 cairo_status_t status;
651 cairo_matrix_t m;
652 cairo_font_options_t *font_options;
653
654 cr = cairo_create(surface);
655
656 cairo_set_antialias(cr, antialiasEnum);
657
658 font_options = cairo_font_options_create();
659 cairo_get_font_options(cr, font_options);
660 cairo_font_options_set_antialias(font_options, antialiasEnum);
661 cairo_set_font_options(cr, font_options);
662 cairo_font_options_destroy(font_options);
663
664 cairoOut->setCairo(cr);
665 cairoOut->setPrinting(printing);
666
667 cairo_save(cr);
668 if (ps && output_w > output_h) {
669 // rotate 90 deg for landscape
670 cairo_translate(cr, 0, output_w);
671 cairo_matrix_init(&m, 0, -1, 1, 0, 0, 0);
672 cairo_transform(cr, &m);
673 }
674 cairo_translate(cr, -crop_x, -crop_y);
675 if (printing) {
676 double cropped_w, cropped_h;
677 getCropSize(page_w, page_h, &cropped_w, &cropped_h);
678 getFitToPageTransform(cropped_w, cropped_h, output_w, output_h, &m);
679 cairo_transform(cr, &m);
680 cairo_rectangle(cr, crop_x, crop_y, cropped_w, cropped_h);
681 cairo_clip(cr);
682 } else {
683 cairo_scale(cr, x_resolution / 72.0, y_resolution / 72.0);
684 }
685 doc->displayPageSlice(cairoOut, pg, 72.0, 72.0, 0, /* rotate */
686 !useCropBox, /* useMediaBox */
687 false, /* Crop */
688 printing, -1, -1, -1, -1);
689 cairo_restore(cr);
690 cairoOut->setCairo(nullptr);
691
692 // Blend onto white page
693 if (!printing && !transp) {
694 cairo_save(cr);
695 cairo_set_operator(cr, CAIRO_OPERATOR_DEST_OVER);
696 cairo_set_source_rgb(cr, 1, 1, 1);
697 cairo_paint(cr);
698 cairo_restore(cr);
699 }
700
701 status = cairo_status(cr);
702 if (status)
703 fprintf(stderr, "cairo error: %s\n", cairo_status_to_string(status));
704 cairo_destroy(cr);
705 }
706
endPage(GooString * imageFileName)707 static void endPage(GooString *imageFileName)
708 {
709 cairo_status_t status;
710
711 if (printing) {
712 cairo_surface_show_page(surface);
713
714 #ifdef CAIRO_HAS_WIN32_SURFACE
715 if (printToWin32)
716 win32EndPage(imageFileName);
717 #endif
718
719 } else {
720 writePageImage(imageFileName);
721 cairo_surface_finish(surface);
722 status = cairo_surface_status(surface);
723 if (status)
724 fprintf(stderr, "cairo error: %s\n", cairo_status_to_string(status));
725 cairo_surface_destroy(surface);
726 }
727 }
728
endDocument()729 static void endDocument()
730 {
731 cairo_status_t status;
732
733 if (printing) {
734 cairo_surface_finish(surface);
735 status = cairo_surface_status(surface);
736 if (status)
737 fprintf(stderr, "cairo error: %s\n", cairo_status_to_string(status));
738 cairo_surface_destroy(surface);
739 #ifdef CAIRO_HAS_WIN32_SURFACE
740 if (printToWin32)
741 win32EndDocument();
742 #endif
743 if (output_file)
744 fclose(output_file);
745 }
746 }
747
setPSPaperSize(char * size,int & psPaperWidth,int & psPaperHeight)748 static bool setPSPaperSize(char *size, int &psPaperWidth, int &psPaperHeight)
749 {
750 if (!strcmp(size, "match")) {
751 psPaperWidth = psPaperHeight = -1;
752 } else if (!strcmp(size, "letter")) {
753 psPaperWidth = 612;
754 psPaperHeight = 792;
755 } else if (!strcmp(size, "legal")) {
756 psPaperWidth = 612;
757 psPaperHeight = 1008;
758 } else if (!strcmp(size, "A4")) {
759 psPaperWidth = 595;
760 psPaperHeight = 842;
761 } else if (!strcmp(size, "A3")) {
762 psPaperWidth = 842;
763 psPaperHeight = 1190;
764 } else {
765 return false;
766 }
767 return true;
768 }
769
getImageFileName(GooString * outputFileName,int numDigits,int page)770 static GooString *getImageFileName(GooString *outputFileName, int numDigits, int page)
771 {
772 char buf[10];
773 GooString *imageName = new GooString(outputFileName);
774 if (!singleFile) {
775 snprintf(buf, sizeof(buf), "-%0*d", numDigits, page);
776 imageName->append(buf);
777 }
778 if (outputFileName->cmp("fd://0") != 0) {
779 if (png)
780 imageName->append(".png");
781 else if (jpeg)
782 imageName->append(".jpg");
783 else if (tiff)
784 imageName->append(".tif");
785 }
786
787 return imageName;
788 }
789
790 // If (printing || singleFile) the output file name includes the
791 // extension. Otherwise it is the file name base.
getOutputFileName(GooString * fileName,GooString * outputName)792 static GooString *getOutputFileName(GooString *fileName, GooString *outputName)
793 {
794 GooString *name;
795
796 if (outputName) {
797 if (outputName->cmp("-") == 0) {
798 if (printToWin32 || (!printing && !singleFile)) {
799 fprintf(stderr, "Error: stdout may only be used with the ps, eps, pdf, svg output options or if -singlefile is used.\n");
800 exit(99);
801 }
802 return new GooString("fd://0");
803 }
804 return new GooString(outputName);
805 }
806
807 if (printToWin32)
808 return nullptr; // No output file means print to printer
809
810 if (fileName->cmp("fd://0") == 0) {
811 fprintf(stderr, "Error: an output filename or '-' must be supplied when the PDF file is stdin.\n");
812 exit(99);
813 }
814
815 // be careful not to overwrite the input file when the output format is PDF
816 if (pdf && fileName->cmpN("http://", 7) != 0 && fileName->cmpN("https://", 8) != 0) {
817 fprintf(stderr, "Error: an output filename or '-' must be supplied when the output format is PDF and input PDF file is a local file.\n");
818 exit(99);
819 }
820
821 // strip everything up to last '/'
822 const char *s = fileName->c_str();
823 const char *p = strrchr(s, '/');
824 if (p) {
825 p++;
826 if (*p == 0) {
827 fprintf(stderr, "Error: invalid output filename.\n");
828 exit(99);
829 }
830 name = new GooString(p);
831 } else {
832 name = new GooString(s);
833 }
834
835 // remove .pdf extension
836 p = strrchr(name->c_str(), '.');
837 if (p && strcasecmp(p, ".pdf") == 0) {
838 GooString *name2 = new GooString(name->c_str(), name->getLength() - 4);
839 delete name;
840 name = name2;
841 }
842
843 // append new extension
844 if (ps)
845 name->append(".ps");
846 else if (eps)
847 name->append(".eps");
848 else if (pdf)
849 name->append(".pdf");
850 else if (svg)
851 name->append(".svg");
852
853 return name;
854 }
855
checkInvalidPrintOption(bool option,const char * option_name)856 static void checkInvalidPrintOption(bool option, const char *option_name)
857 {
858 if (option) {
859 fprintf(stderr, "Error: %s may only be used with the -png, -jpeg, or -tiff output options.\n", option_name);
860 exit(99);
861 }
862 }
863
checkInvalidImageOption(bool option,const char * option_name)864 static void checkInvalidImageOption(bool option, const char *option_name)
865 {
866 if (option) {
867 fprintf(stderr, "Error: %s may only be used with the -ps, -eps, -pdf, or -svg output options.\n", option_name);
868 exit(99);
869 }
870 }
871
main(int argc,char * argv[])872 int main(int argc, char *argv[])
873 {
874 GooString *fileName = nullptr;
875 GooString *outputName = nullptr;
876 GooString *outputFileName = nullptr;
877 GooString *imageFileName = nullptr;
878 GooString *ownerPW, *userPW;
879 CairoOutputDev *cairoOut;
880 int pg, pg_num_len;
881 double pg_w, pg_h, tmp, output_w, output_h;
882 int num_outputs;
883
884 // parse args
885 Win32Console win32Console(&argc, &argv);
886 if (!parseArgs(argDesc, &argc, argv)) {
887 printUsage("pdftocairo", nullptr, argDesc);
888 exit(99);
889 }
890
891 if (resolution != 0.0 && (x_resolution == 150.0 || y_resolution == 150.0)) {
892 x_resolution = resolution;
893 y_resolution = resolution;
894 }
895 if (argc < 2 || argc > 3 || printVersion || printHelp) {
896 fprintf(stderr, "pdftocairo version %s\n", PACKAGE_VERSION);
897 fprintf(stderr, "%s\n", popplerCopyright);
898 fprintf(stderr, "%s\n", xpdfCopyright);
899 if (!printVersion) {
900 printUsage("pdftocairo", "<PDF-file> [<output-file>]", argDesc);
901 }
902 if (printVersion || printHelp)
903 exit(0);
904 else
905 exit(99);
906 }
907
908 num_outputs = (png ? 1 : 0) + (jpeg ? 1 : 0) + (tiff ? 1 : 0) + (ps ? 1 : 0) + (eps ? 1 : 0) + (pdf ? 1 : 0) + (printToWin32 ? 1 : 0) + (printdlg ? 1 : 0) + (svg ? 1 : 0);
909 if (num_outputs == 0) {
910 fprintf(stderr, "Error: one of the output format options (-png, -jpeg, -ps, -eps, -pdf, -print, -printdlg, -svg) must be used.\n");
911 exit(99);
912 }
913 if (num_outputs > 1) {
914 fprintf(stderr, "Error: use only one of the output format options (-png, -jpeg, -ps, -eps, -pdf, -printdlg, -print, -svg).\n");
915 exit(99);
916 }
917 if (png || jpeg || tiff)
918 printing = false;
919 else
920 printing = true;
921
922 if (printing) {
923 checkInvalidPrintOption(mono, "-mono");
924 checkInvalidPrintOption(gray, "-gray");
925 checkInvalidPrintOption(transp, "-transp");
926 checkInvalidPrintOption(icc.c_str()[0], "-icc");
927 checkInvalidPrintOption(singleFile, "-singlefile");
928 checkInvalidPrintOption(useCropBox, "-cropbox");
929 checkInvalidPrintOption(scaleTo != 0, "-scale-to");
930 checkInvalidPrintOption(x_scaleTo != 0, "-scale-to-x");
931 checkInvalidPrintOption(y_scaleTo != 0, "-scale-to-y");
932 } else {
933 checkInvalidImageOption(level2, "-level2");
934 checkInvalidImageOption(level3, "-level3");
935 checkInvalidImageOption(origPageSizes, "-origpagesizes");
936 checkInvalidImageOption(paperSize[0], "-paper");
937 checkInvalidImageOption(paperWidth > 0, "-paperw");
938 checkInvalidImageOption(paperHeight > 0, "-paperh");
939 checkInvalidImageOption(noCrop, "-nocrop");
940 checkInvalidImageOption(expand, "-expand");
941 checkInvalidImageOption(noShrink, "-noshrink");
942 checkInvalidImageOption(noCenter, "-nocenter");
943 checkInvalidImageOption(duplex, "-duplex");
944 }
945
946 if (printing)
947 useCropBox = !noCrop;
948
949 if (icc.c_str()[0] && !png) {
950 fprintf(stderr, "Error: -icc may only be used with png output.\n");
951 exit(99);
952 }
953
954 if (antialias.getLength() > 0) {
955 if (!parseAntialiasOption())
956 exit(99);
957 }
958
959 if (transp && !(png || tiff)) {
960 fprintf(stderr, "Error: -transp may only be used with png or tiff output.\n");
961 exit(99);
962 }
963
964 if (mono && gray) {
965 fprintf(stderr, "Error: -mono and -gray may not be used together.\n");
966 exit(99);
967 }
968
969 if (mono && !(png || tiff)) {
970 fprintf(stderr, "Error: -mono may only be used with png or tiff output.\n");
971 exit(99);
972 }
973
974 if (jpegOpt.getLength() > 0) {
975 if (!jpeg) {
976 fprintf(stderr, "Error: -jpegopt may only be used with jpeg output.\n");
977 exit(99);
978 }
979 if (!parseJpegOptions())
980 exit(99);
981 }
982
983 if (strlen(tiffCompressionStr) > 0 && !tiff) {
984 fprintf(stderr, "Error: -tiffcompression may only be used with tiff output.\n");
985 exit(99);
986 }
987
988 if (level2 && level3) {
989 fprintf(stderr, "Error: use only one of the 'level' options.\n");
990 exit(99);
991 }
992 if (!level2 && !level3)
993 level3 = true;
994
995 if (eps && (origPageSizes || paperSize[0] || paperWidth > 0 || paperHeight > 0)) {
996 fprintf(stderr, "Error: page size options may not be used with eps output.\n");
997 exit(99);
998 }
999
1000 if ((paperWidth > 0 && paperHeight <= 0) || (paperWidth <= 0 && paperHeight > 0)) {
1001 fprintf(stderr, "Error: both -paperw and -paperh must be specified.\n");
1002 exit(99);
1003 }
1004
1005 if (paperSize[0]) {
1006 if (origPageSizes) {
1007 fprintf(stderr, "Error: -origpagesizes and -paper may not be used together.\n");
1008 exit(99);
1009 }
1010 if (!setPSPaperSize(paperSize, paperWidth, paperHeight)) {
1011 fprintf(stderr, "Invalid paper size\n");
1012 exit(99);
1013 }
1014 }
1015 if (origPageSizes || paperWidth < 0 || paperHeight < 0)
1016 usePDFPageSize = true;
1017 else
1018 usePDFPageSize = false;
1019
1020 if (printdlg)
1021 printToWin32 = true;
1022
1023 globalParams = std::make_unique<GlobalParams>();
1024 if (quiet) {
1025 globalParams->setErrQuiet(quiet);
1026 }
1027
1028 // open PDF file
1029 if (ownerPassword[0]) {
1030 ownerPW = new GooString(ownerPassword);
1031 } else {
1032 ownerPW = nullptr;
1033 }
1034 if (userPassword[0]) {
1035 userPW = new GooString(userPassword);
1036 } else {
1037 userPW = nullptr;
1038 }
1039
1040 fileName = new GooString(argv[1]);
1041 if (fileName->cmp("-") == 0) {
1042 delete fileName;
1043 fileName = new GooString("fd://0");
1044 }
1045 if (argc == 3)
1046 outputName = new GooString(argv[2]);
1047 else
1048 outputName = nullptr;
1049
1050 outputFileName = getOutputFileName(fileName, outputName);
1051
1052 #ifdef USE_CMS
1053 icc_data = nullptr;
1054 if (icc.c_str()[0]) {
1055 FILE *file = fopen(icc.c_str(), "rb");
1056 if (!file) {
1057 fprintf(stderr, "Error: unable to open icc profile %s\n", icc.c_str());
1058 exit(4);
1059 }
1060 fseek(file, 0, SEEK_END);
1061 icc_data_size = ftell(file);
1062 fseek(file, 0, SEEK_SET);
1063 icc_data = (unsigned char *)gmalloc(icc_data_size);
1064 if (fread(icc_data, icc_data_size, 1, file) != 1) {
1065 fprintf(stderr, "Error: unable to read icc profile %s\n", icc.c_str());
1066 exit(4);
1067 }
1068 fclose(file);
1069 profile = make_GfxLCMSProfilePtr(cmsOpenProfileFromMem(icc_data, icc_data_size));
1070 if (!profile) {
1071 fprintf(stderr, "Error: lcms error opening profile\n");
1072 exit(4);
1073 }
1074 } else {
1075 profile = make_GfxLCMSProfilePtr(cmsCreate_sRGBProfile());
1076 }
1077 #endif
1078
1079 std::unique_ptr<PDFDoc> doc = PDFDocFactory().createPDFDoc(*fileName, ownerPW, userPW);
1080 if (!doc->isOk()) {
1081 fprintf(stderr, "Error opening PDF file.\n");
1082 exit(1);
1083 }
1084
1085 #ifdef ENFORCE_PERMISSIONS
1086 // check for print permission
1087 if (printing && !doc->okToPrint()) {
1088 fprintf(stderr, "Printing this document is not allowed.\n");
1089 exit(3);
1090 }
1091 #endif
1092
1093 // get page range
1094 if (firstPage < 1)
1095 firstPage = 1;
1096 if (singleFile && lastPage < 1)
1097 lastPage = firstPage;
1098 if (lastPage < 1 || lastPage > doc->getNumPages())
1099 lastPage = doc->getNumPages();
1100
1101 if (lastPage < firstPage) {
1102 fprintf(stderr, "Wrong page range given: the first page (%d) can not be after the last page (%d).\n", firstPage, lastPage);
1103 exit(99);
1104 }
1105 if (eps && firstPage != lastPage) {
1106 fprintf(stderr, "EPS files can only contain one page.\n");
1107 exit(99);
1108 }
1109
1110 // If our page range selection and document size indicate we're only
1111 // outputting a single page, ensure that even/odd page selection doesn't
1112 // filter out that single page.
1113 if (firstPage == lastPage && ((printOnlyEven && firstPage % 2 == 1) || (printOnlyOdd && firstPage % 2 == 0))) {
1114 fprintf(stderr, "Invalid even/odd page selection, no pages match criteria.\n");
1115 exit(99);
1116 }
1117
1118 if (singleFile && firstPage < lastPage) {
1119 if (!quiet) {
1120 fprintf(stderr, "Warning: Single file will write only the first of the %d pages.\n", lastPage + 1 - firstPage);
1121 }
1122 lastPage = firstPage;
1123 }
1124
1125 #ifdef CAIRO_HAS_WIN32_SURFACE
1126 if (printdlg) {
1127 bool allPages = false;
1128 if (firstPage == 1 && lastPage == doc->getNumPages())
1129 allPages = true;
1130 win32ShowPrintDialog(&expand, &noShrink, &noCenter, &usePDFPageSize, &allPages, &firstPage, &lastPage, doc->getNumPages());
1131 if (allPages) {
1132 firstPage = 1;
1133 lastPage = doc->getNumPages();
1134 }
1135 } else if (printToWin32) {
1136 win32SetupPrinter(&printer, &printOpt, duplex, setupdlg);
1137 }
1138 #endif
1139
1140 cairoOut = new CairoOutputDev();
1141 #ifdef USE_CMS
1142 cairoOut->setDisplayProfile(profile);
1143 #endif
1144 cairoOut->startDoc(doc.get());
1145 if (sz != 0)
1146 crop_w = crop_h = sz;
1147 pg_num_len = numberOfCharacters(doc->getNumPages());
1148 for (pg = firstPage; pg <= lastPage; ++pg) {
1149 if (printOnlyEven && pg % 2 == 1)
1150 continue;
1151 if (printOnlyOdd && pg % 2 == 0)
1152 continue;
1153 if (useCropBox) {
1154 pg_w = doc->getPageCropWidth(pg);
1155 pg_h = doc->getPageCropHeight(pg);
1156 } else {
1157 pg_w = doc->getPageMediaWidth(pg);
1158 pg_h = doc->getPageMediaHeight(pg);
1159 }
1160
1161 if (printing && pg == firstPage) {
1162 if (paperWidth < 0 || paperHeight < 0) {
1163 paperWidth = (int)ceil(pg_w);
1164 paperHeight = (int)ceil(pg_h);
1165 }
1166 }
1167
1168 if ((doc->getPageRotate(pg) == 90) || (doc->getPageRotate(pg) == 270)) {
1169 tmp = pg_w;
1170 pg_w = pg_h;
1171 pg_h = tmp;
1172 }
1173 if (scaleTo != 0) {
1174 resolution = (72.0 * scaleTo) / (pg_w > pg_h ? pg_w : pg_h);
1175 x_resolution = y_resolution = resolution;
1176 } else {
1177 if (x_scaleTo > 0) {
1178 x_resolution = (72.0 * x_scaleTo) / pg_w;
1179 if (y_scaleTo == -1)
1180 y_resolution = x_resolution;
1181 }
1182 if (y_scaleTo > 0) {
1183 y_resolution = (72.0 * y_scaleTo) / pg_h;
1184 if (x_scaleTo == -1)
1185 x_resolution = y_resolution;
1186 }
1187 }
1188 if (imageFileName) {
1189 delete imageFileName;
1190 imageFileName = nullptr;
1191 }
1192 if (!printing)
1193 imageFileName = getImageFileName(outputFileName, pg_num_len, pg);
1194 getOutputSize(pg_w, pg_h, &output_w, &output_h);
1195
1196 if (pg == firstPage)
1197 beginDocument(fileName, outputFileName, output_w, output_h);
1198 beginPage(&output_w, &output_h);
1199 renderPage(doc.get(), cairoOut, pg, pg_w, pg_h, output_w, output_h);
1200 endPage(imageFileName);
1201 }
1202 endDocument();
1203
1204 // clean up
1205 delete cairoOut;
1206 if (fileName)
1207 delete fileName;
1208 if (outputName)
1209 delete outputName;
1210 if (outputFileName)
1211 delete outputFileName;
1212 if (imageFileName)
1213 delete imageFileName;
1214 if (ownerPW)
1215 delete ownerPW;
1216 if (userPW)
1217 delete userPW;
1218
1219 #ifdef USE_CMS
1220 if (icc_data)
1221 gfree(icc_data);
1222 #endif
1223
1224 return 0;
1225 }
1226