src/pdf2pdf.c

   1 /* pdf2pdf.c
   2    main routine for pdf2pdf(1)
   3
   4    Part of the swftools package.
   5
   6    Copyright (c) 2009 Matthias Kramm <kramm@quiss.org>
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  21
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27 #include "../config.h"
  28 #include "../lib/args.h"
  29 #include "../lib/os.h"
  30 #include "../lib/gfxsource.h"
  31 #include "../lib/gfxdevice.h"
  32 #include "../lib/gfxpoly.h"
  33 #include "../lib/devices/rescale.h"
  34 #include "../lib/devices/polyops.h"
  35 #include "../lib/devices/pdf.h"
  36 #include "../lib/readers/image.h"
  37 #include "../lib/readers/swf.h"
  38 #include "../lib/pdf/pdf.h"
  39 #include "../lib/log.h"
  40
  41 static gfxsource_t*driver = 0;
  42
  43 static int maxwidth = 0;
  44 static int maxheight = 0;
  45 static char * outputname = 0;
  46 static int loglevel = 3;
  47 static char * pagerange = 0;
  48 static char * filename = 0;
  49 static const char * format = "ocr";
  50
  51 int args_callback_option(char*name,char*val) {
  52     if (!strcmp(name, "o"))
  53     {
  54         outputname = val;
  55         return 1;
  56     }
  57     else if (!strcmp(name, "v"))
  58     {
  59         loglevel ++;
  60         setConsoleLogging(loglevel);
  61         return 0;
  62     }
  63     else if (!strcmp(name, "f"))
  64     {
  65         format = val;
  66         return 1;
  67     }
  68     else if (!strcmp(name, "q"))
  69     {
  70         loglevel --;
  71         setConsoleLogging(loglevel);
  72         return 0;
  73     }
  74     else if (name[0]=='p')
  75     {
  76         do {
  77             name++;
  78         } while(*name == 32 || *name == 13 || *name == 10 || *name == '\t');
  79
  80         if(*name) {
  81             pagerange = name;
  82             return 0;
  83         }
  84         pagerange = val;
  85         return 1;
  86     }
  87     else if (!strcmp(name, "s"))
  88     {
  89         if(!driver) {
  90             fprintf(stderr, "Specify input file before -s\n");
  91             exit(1);
  92         }
  93         char*s = strdup(val);
  94         char*c = strchr(s, '=');
  95         if(c && *c && c[1])  {
  96             *c = 0;
  97             c++;
  98             driver->setparameter(driver, s,c);
  99         } else {
 100             driver->setparameter(driver, s,"1");
 101         }
 102         free(s);
 103         return 1;
 104     }
 105     else if (!strcmp(name, "X"))
 106     {
 107         maxwidth = atoi(val);
 108         return 1;
 109     }
 110     else if (!strcmp(name, "Y"))
 111     {
 112         maxheight = atoi(val);
 113         return 1;
 114     }
 115     else if (!strcmp(name, "V"))
 116     {
 117         printf("pdf2swf - part of %s %s\n", PACKAGE, VERSION);
 118         exit(0);
 119     }
 120     else
 121     {
 122         fprintf(stderr, "Unknown option: -%s\n", name);
 123         exit(1);
 124     }
 125     return 0;
 126 }
 127
 128 static struct options_t options[] = {
 129 {"h", "help"},
 130 {"v", "verbose"},
 131 {"p", "pages"},
 132 {"X", "width"},
 133 {"Y", "height"},
 134 {"s", "set"},
 135 {"o", "output"},
 136 {"V", "version"},
 137 {0,0}
 138 };
 139
 140 int args_callback_longoption(char*name,char*val) {
 141     return args_long2shortoption(options, name, val);
 142 }
 143
 144 int args_callback_command(char*name, char*val) {
 145     if (!filename) {
 146
 147         filename = name;
 148
 149         if(strstr(filename, ".pdf") || strstr(filename, ".PDF")) {
 150             msg("<verbose> Treating file as PDF");
 151             driver = gfxsource_pdf_create();
 152         } else if(strstr(filename, ".swf") || strstr(filename, ".SWF")) {
 153             msg("<verbose> Treating file as SWF");
 154             driver = gfxsource_swf_create();
 155         } else if(strstr(filename, ".jpg") || strstr(filename, ".JPG") ||
 156                   strstr(filename, ".png") || strstr(filename, ".PNG")) {
 157             msg("<verbose> Treating file as Image");
 158             driver = gfxsource_image_create();
 159         } else {
 160             driver = gfxsource_pdf_create();
 161         }
 162     } else {
 163         if(outputname)
 164         {
 165              fprintf(stderr, "Error: Do you want the output to go to %s or to %s?",
 166                      outputname, name);
 167              exit(1);
 168         }
 169         outputname = name;
 170     }
 171     return 0;
 172 }
 173
 174 void args_callback_usage(char *name)
 175 {
 176     printf("\n");
 177     printf("Usage: %s <pdffile>\n", name);
 178     printf("\n");
 179     printf("-h , --help                    Print short help message and exit\n");
 180     printf("-v , --verbose                 Be verbose. Use more than one -v for greater effect.\n");
 181     printf("-p , --pages <pages>           Pages to convert\n");
 182     printf("-X , --width <width>           Make sure the output pdf is <width> pixels wide\n");
 183     printf("-Y , --height <height>         Make sure the output pdf is <height> pixels high\n");
 184     printf("-s , --set <parameter>=<value>    Set <parameter> to <value>\n");
 185     printf("-o , --output <filename>       Write output to file <filename>.\n");
 186     printf("-V , --version                 Print version info and exit\n");
 187     printf("\n");
 188 }
 189
 190 int main(int argn, char *argv[])
 191 {
 192     processargs(argn, argv);
 193     initLog(0,-1,0,0,-1,loglevel);
 194
 195     if(!filename) {
 196         fprintf(stderr, "Please specify an input file\n");
 197         exit(1);
 198     }
 199
 200     if(!outputname)
 201     {
 202         if(filename) {
 203             outputname = stripFilename(filename, ".print.pdf");
 204             msg("<notice> Output filename not given. Writing to %s", outputname);
 205         }
 206     }
 207     if(!outputname)
 208     {
 209         fprintf(stderr, "Please use -o to specify an output file\n");
 210         exit(1);
 211     }
 212
 213     is_in_range(0x7fffffff, pagerange);
 214     if(pagerange)
 215         driver->setparameter(driver, "pages", pagerange);
 216
 217     if(!filename) {
 218         args_callback_usage(argv[0]);
 219         exit(0);
 220     }
 221
 222     gfxdocument_t* doc = driver->open(driver, filename);
 223     //doc->setparameter(doc, "drawonlyshapes", "1");
 224     doc->setparameter(doc, "disable_polygon_conversion", "1");
 225
 226     if(!doc) {
 227         msg("<error> Couldn't open %s", filename);
 228         exit(1);
 229     }
 230
 231     gfxdevice_t _out,*out=&_out;
 232     gfxdevice_pdf_init(out);
 233
 234     /*gfxdevice_t wrap;
 235     gfxdevice_removeclippings_init(&wrap, out);
 236     out = &wrap;*/
 237
 238     gfxdevice_t rescale;
 239     if(maxwidth || maxheight) {
 240         gfxdevice_rescale_init(&rescale, out, maxwidth, maxheight, 0);
 241         out = &rescale;
 242         out->setparameter(out, "keepratio", "1");
 243     }
 244
 245     int pagenr;
 246     for(pagenr = 1; pagenr <= doc->num_pages; pagenr++)
 247     {
 248         if(is_in_range(pagenr, pagerange)) {
 249             gfxpage_t* page = doc->getpage(doc, pagenr);
 250             out->startpage(out, page->width, page->height);
 251             page->render(page, out);
 252             out->endpage(out);
 253             page->destroy(page);
 254         }
 255     }
 256     gfxresult_t*result = out->finish(out);
 257     if(result) {
 258         if(result->save(result, outputname) < 0) {
 259             exit(1);
 260         }
 261         result->destroy(result);
 262     }
 263     doc->destroy(doc);
 264     driver->destroy(driver);
 265     return 0;
 266 }
 267