int pdfextract_main(int argc, char **argv)
{
char *infile;
char *password = "";
int c, o;
while ((c = fz_getopt(argc, argv, "p:r")) != -1)
{
switch (c)
{
case 'p':
password = fz_optarg;
break;
case 'r':
dorgb++;
break;
default:
usage();
break;
}
}
if (fz_optind == argc)
usage();
infile = argv[fz_optind++];
ctx = fz_new_context(NULL, NULL, FZ_STORE_UNLIMITED);
if (!ctx)
{
fprintf(stderr, "cannot initialise context\n");
exit(1);
}
doc = pdf_open_document(ctx, infile);
if (pdf_needs_password(ctx, doc))
if (!pdf_authenticate_password(ctx, doc, password))
fz_throw(ctx, FZ_ERROR_GENERIC, "cannot authenticate password: %s", infile);
if (fz_optind == argc)
{
int len = pdf_count_objects(ctx, doc);
for (o = 1; o < len; o++)
showobject(o);
}
else
{
while (fz_optind < argc)
{
showobject(atoi(argv[fz_optind]));
fz_optind++;
}
}
pdf_close_document(ctx, doc);
fz_flush_warnings(ctx);
fz_drop_context(ctx);
return 0;
}
/* Image specific methods */
static void
res_image_init(fz_context *ctx, pdf_document *doc, pdf_res_table *table)
{
int len, k;
pdf_obj *obj;
pdf_obj *type;
pdf_obj *res = NULL;
fz_image *image = NULL;
unsigned char digest[16];
fz_var(obj);
fz_var(image);
fz_var(res);
fz_try(ctx)
{
table->hash = fz_new_hash_table(ctx, 4096, 16, -1);
len = pdf_count_objects(ctx, doc);
for (k = 1; k < len; k++)
{
obj = pdf_load_object(ctx, doc, k, 0);
type = pdf_dict_get(ctx, obj, PDF_NAME_Subtype);
if (pdf_name_eq(ctx, type, PDF_NAME_Image))
{
image = pdf_load_image(ctx, doc, obj);
res_image_get_md5(ctx, image, digest);
fz_drop_image(ctx, image);
image = NULL;
/* Don't allow overwrites. */
if (fz_hash_find(ctx, table->hash, digest) == NULL)
fz_hash_insert(ctx, table->hash, digest, obj);
}
else
{
pdf_drop_obj(ctx, obj);
}
obj = NULL;
}
}
fz_always(ctx)
{
fz_drop_image(ctx, image);
pdf_drop_obj(ctx, obj);
}
fz_catch(ctx)
{
res_table_free(ctx, table);
fz_rethrow(ctx);
}
}
