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/*
* pdfdraw -- command line tool for drawing pdf documents
*/
#include "fitz.h"
#include "mupdf.h"
#define MAXBANDSIZE (3 * 1024 * 1024)
char *output = NULL;
float resolution = 72;
int showxml = 0;
int showtext = 0;
int showtime = 0;
int savealpha = 0;
fz_glyphcache *glyphcache;
char *filename;
static void die(fz_error error)
{
fz_catch(error, "aborting");
exit(1);
}
static void usage(void)
{
fprintf(stderr,
"usage: pdfdraw [options] input.pdf [pages]\n"
"\t-o -\toutput filename (%%d for page number)\n"
"\t\tsupported formats: pgm, ppm, pam, png\n"
"\t-p -\tpassword\n"
"\t-r -\tresolution in dpi (default: 72)\n"
"\t-x\tshow display list as xml\n"
"\t-t\textract text (-tt for xml)\n"
"\t-a\tsave alpha channel (only pam and png)\n"
"\tpages\tcomma separated list of ranges\n");
exit(1);
}
static int isrange(char *s)
{
while (*s)
{
if ((*s < '0' || *s > '9') && *s != '-' && *s != ',')
return 0;
s++;
}
return 1;
}
static void drawpage(pdf_xref *xref, int pagenum)
{
fz_error error;
fz_obj *pageobj;
pdf_page *page;
fz_displaylist *list;
fz_device *dev;
fz_matrix ctm;
fz_bbox bbox;
fz_colorspace *colorspace;
fz_pixmap *pix;
char buf[512];
float zoom;
pageobj = pdf_getpageobject(xref, pagenum);
error = pdf_loadpage(&page, xref, pageobj);
if (error)
die(fz_rethrow(error, "cannot load page %d in file '%s'", pagenum, filename));
list = fz_newdisplaylist();
dev = fz_newlistdevice(list);
error = pdf_runpage(xref, page, dev, fz_identity);
if (error)
die(fz_rethrow(error, "cannot draw page %d in file '%s'", pagenum, filename));
fz_freedevice(dev);
if (showxml)
{
dev = fz_newtracedevice();
printf("<page number=\"%d\">\n", pagenum);
fz_executedisplaylist(list, dev, fz_identity);
printf("</page>\n");
fz_freedevice(dev);
}
if (showtext)
{
fz_textspan *text = fz_newtextspan();
dev = fz_newtextdevice(text);
fz_executedisplaylist(list, dev, fz_identity);
fz_freedevice(dev);
printf("[Page %d]\n", pagenum);
if (showtext > 1)
fz_debugtextspanxml(text);
else
fz_debugtextspan(text);
printf("\n");
fz_freetextspan(text);
}
if (output || showtime)
{
sprintf(buf, output, pagenum);
zoom = resolution / 72;
ctm = fz_translate(0, -page->mediabox.y1);
ctm = fz_concat(ctm, fz_scale(zoom, -zoom));
ctm = fz_concat(ctm, fz_rotate(page->rotate));
bbox = fz_roundrect(fz_transformrect(ctm, page->mediabox));
colorspace = pdf_devicergb;
if (strstr(output, ".pgm"))
colorspace = pdf_devicegray;
/* TODO: banded rendering and multi-page ppm */
pix = fz_newpixmap(colorspace, bbox.x0, bbox.y0, bbox.x1, bbox.y1);
if (savealpha)
fz_clearpixmap(pix, 0x00);
else
fz_clearpixmap(pix, 0xff);
dev = fz_newdrawdevice(glyphcache, pix);
fz_executedisplaylist(list, dev, ctm);
fz_freedevice(dev);
if (strstr(output, ".pgm") || strstr(output, ".ppm") || strstr(output, ".pnm"))
fz_writepnm(pix, buf);
else if (strstr(output, ".pam"))
fz_writepam(pix, buf, savealpha);
else if (strstr(output, ".png"))
fz_writepng(pix, buf, savealpha);
fz_droppixmap(pix);
}
fz_freedisplaylist(list);
pdf_freepage(page);
pdf_agestoreditems(xref->store);
pdf_evictageditems(xref->store);
}
static void drawrange(pdf_xref *xref, char *range)
{
int page, spage, epage;
char *spec, *dash;
spec = fz_strsep(&range, ",");
while (spec)
{
dash = strchr(spec, '-');
if (dash == spec)
spage = epage = 1;
else
spage = epage = atoi(spec);
if (dash)
{
if (strlen(dash) > 1)
epage = atoi(dash + 1);
else
epage = pdf_getpagecount(xref);
}
spage = CLAMP(spage, 1, pdf_getpagecount(xref));
epage = CLAMP(epage, 1, pdf_getpagecount(xref));
if (spage < epage)
for (page = spage; page <= epage; page++)
drawpage(xref, page);
else
for (page = spage; page >= epage; page--)
drawpage(xref, page);
spec = fz_strsep(&range, ",");
}
}
int main(int argc, char **argv)
{
char *password = "";
pdf_xref *xref;
fz_error error;
int c;
fz_accelerate();
while ((c = fz_getopt(argc, argv, "o:p:r:amtx")) != -1)
{
switch (c)
{
case 'o': output = fz_optarg; break;
case 'p': password = fz_optarg; break;
case 'r': resolution = atof(fz_optarg) / 72; break;
case 'a': savealpha = 1; break;
case 'm': showtime++; break;
case 't': showtext++; break;
case 'x': showxml++; break;
default: usage(); break;
}
}
if (fz_optind == argc)
usage();
if (showxml)
printf("<?xml version=\"1.0\"?>\n");
glyphcache = fz_newglyphcache();
while (fz_optind < argc)
{
filename = argv[fz_optind++];
error = pdf_openxref(&xref, filename, password);
if (error)
die(fz_rethrow(error, "cannot open document: %s", filename));
if (showxml)
printf("<document name=\"%s\">\n", filename);
if (fz_optind == argc || !isrange(argv[fz_optind]))
drawrange(xref, "1-");
if (fz_optind < argc && isrange(argv[fz_optind]))
drawrange(xref, argv[fz_optind++]);
if (showxml)
printf("</document>\n");
pdf_freexref(xref);
}
fz_freeglyphcache(glyphcache);
return 0;
}
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