diff options
Diffstat (limited to 'apps/pdfselect.c')
| -rw-r--r-- | apps/pdfselect.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/apps/pdfselect.c b/apps/pdfselect.c deleted file mode 100644 index f2381f94..00000000 --- a/apps/pdfselect.c +++ /dev/null @@ -1,299 +0,0 @@ -#include <fitz.h> -#include <mupdf.h> - -void usage() -{ - fprintf(stderr, - "usage: pdfselect [options] infile.pdf outfile.pdf pageranges\n" - " -d -\tpassword for decryption\n" - " -e \tselect only even pages\n" - " -o \tselect only odd pages\n" - " -r \toutput in reverse order\n" - " -v \tverbose\n" - ); - exit(1); -} - -void preloadobjstms(pdf_xref *xref) -{ - fz_error *error; - fz_obj *obj; - int i; - - for (i = 0; i < xref->len; i++) - { - if (xref->table[i].type == 'o') - { - error = pdf_loadobject(&obj, xref, i, 0); - if (error) fz_abort(error); - fz_dropobj(obj); - } - } -} - -int main(int argc, char **argv) -{ - fz_error *error; - char *password = ""; - char *infile; - char *outfile; - pdf_xref *xref; - pdf_pagetree *pages; - fz_obj *pagesref; - fz_obj *kids; - int i, k; - int c; - int page; - int rootoid; - int rootgid; - int kidsoid; - int kidsgid; - int pagesoid; - int pagesgid; - fz_obj *obj; - - int verbose = 0; - int even = 0; - int odd = 0; - int reverse = 0; - int all = 0; - - while ((c = getopt(argc, argv, "d:eorv")) != -1) - { - switch (c) - { - case 'd': password = optarg; break; - case 'e': ++ even; break; - case 'o': ++ odd; break; - case 'r': ++ reverse; break; - case 'v': ++ verbose; break; - default: usage(); - } - } - - if (argc - optind < 2) - usage(); - - if (argc - optind < 3 && !even && !odd && !reverse) - usage(); - - if (argc - optind == 2) - all = 1; - - infile = argv[optind++]; - outfile = argv[optind++]; - - if (verbose) - printf("loading pdf '%s'\n", infile); - - error = pdf_newxref(&xref); - if (error) - fz_abort(error); - - error = pdf_loadxref(xref, infile); - if (error) - fz_abort(error); - - error = pdf_decryptxref(xref); - if (error) - fz_abort(error); - - if (xref->crypt) - { - error = pdf_setpassword(xref->crypt, password); - if (error) - fz_abort(error); - } - - error = pdf_loadpagetree(&pages, xref); - if (error) - fz_abort(error); - - /* - * Kill annotations on all pages - */ - - if (verbose) - printf("killing time\n"); - - for (k = 0; k < pages->count; k++) - { - fz_dictdels(pages->pobj[k], "Parent"); - fz_dictdels(pages->pobj[k], "B"); - fz_dictdels(pages->pobj[k], "PieceInfo"); - fz_dictdels(pages->pobj[k], "Metadata"); - fz_dictdels(pages->pobj[k], "Annots"); - fz_dictdels(pages->pobj[k], "Tabs"); - pdf_updateobject(xref, - fz_tonum(pages->pref[k]), - fz_togen(pages->pref[k]), - pages->pobj[k]); - } - - /* - * Save the pages we want to keep, in the order specified - */ - - error = fz_newarray(&kids, 100); - if (error) - fz_abort(error); - - for ( ; optind < argc; optind++) - { - int spage, epage; - char *spec = argv[optind]; - char *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(pages); - } - - if (spage > epage) - page = spage, spage = epage, epage = page; - - for (page = spage; page <= epage; page++) - { - if (page < 1 || page > pdf_getpagecount(pages)) - continue; - if (odd && (page & 1) != 1) - continue; - if (even && (page & 1) != 0) - continue; - error = fz_arraypush(kids, pages->pref[page-1]); - if (error) - fz_abort(error); - } - } - - if (all) - { - for (page = 1; page <= pdf_getpagecount(pages); page++) - { - if (odd && (page & 1) != 1) - continue; - if (even && (page & 1) != 0) - continue; - error = fz_arraypush(kids, pages->pref[page-1]); - if (error) - fz_abort(error); - } - } - - if (reverse) - { - fz_obj *o1, *o2; - int len = fz_arraylen(kids); - for (i = 0; i < len / 2; i++) - { - o1 = fz_keepobj(fz_arrayget(kids, i)); - o2 = fz_keepobj(fz_arrayget(kids, len - i - 1)); - fz_arrayput(kids, i, o2); - fz_arrayput(kids, len - i - 1, o1); - } - } - - /* - * Save the new kids array - */ - - error = pdf_allocobject(xref, &kidsoid, &kidsgid); - if (error) - fz_abort(error); - - pdf_updateobject(xref, kidsoid, kidsgid, kids); - - /* - * Save the new pages object - */ - - error = pdf_allocobject(xref, &pagesoid, &pagesgid); - if (error) - fz_abort(error); - - error = fz_packobj(&obj, - "<</Type/Pages/Count %i/Kids %r>>", - fz_arraylen(kids), kidsoid, kidsgid); - if (error) - fz_abort(error); - - pdf_updateobject(xref, pagesoid, pagesgid, obj); - - fz_dropobj(obj); - - /* - * Relink parents to point to new pages object - */ - - error = fz_newindirect(&pagesref, pagesoid, pagesgid); - if (error) - fz_abort(error); - - for (i = 0; i < fz_arraylen(kids); i++) - { - int oid = fz_tonum(fz_arrayget(kids, i)); - int gid = fz_togen(fz_arrayget(kids, i)); - error = pdf_loadobject(&obj, xref, oid, gid); - if (error) - fz_abort(error); - error = fz_dictputs(obj, "Parent", pagesref); - if (error) - fz_abort(error); - pdf_updateobject(xref, oid, gid, obj); - fz_dropobj(obj); - } - - fz_dropobj(pagesref); - - /* - * Create new catalog and trailer - */ - - error = pdf_allocobject(xref, &rootoid, &rootgid); - if (error) - fz_abort(error); - - error = fz_packobj(&obj, - "<</Type/Catalog/Pages %r>>", - pagesoid, pagesgid); - if (error) - fz_abort(error); - - pdf_updateobject(xref, rootoid, rootgid, obj); - - fz_dropobj(obj); - - error = fz_packobj(&xref->trailer, "<</Root %r>>", rootoid, rootgid); - if (error) - fz_abort(error); - - /* - * Write out the new PDF - */ - - if (verbose) - printf("garbage collecting\n"); - - preloadobjstms(xref); - pdf_garbagecollect(xref); - - if (verbose) - printf("saving pdf '%s'\n", outfile); - - error = pdf_savexref(xref, outfile, nil); - if (error) - fz_abort(error); - - pdf_closexref(xref); - - return 0; -} - |