| /* |
| * Copyright © 2005 Red Hat, Inc. |
| * |
| * Permission to use, copy, modify, distribute, and sell this software |
| * and its documentation for any purpose is hereby granted without |
| * fee, provided that the above copyright notice appear in all copies |
| * and that both that copyright notice and this permission notice |
| * appear in supporting documentation, and that the name of |
| * Red Hat, Inc. not be used in advertising or publicity pertaining to |
| * distribution of the software without specific, written prior |
| * permission. Red Hat, Inc. makes no representations about the |
| * suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS |
| * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, |
| * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER |
| * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR |
| * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| * |
| * Author: Kristian Høgsberg <krh@redhat.com> |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <poppler.h> |
| |
| #define FAIL(msg) \ |
| do { fprintf (stderr, "FAIL: %s\n", msg); exit (-1); } while (0) |
| |
| #define PIXELS_PER_POINT 1 |
| |
| int main (int argc, char *argv[]) |
| { |
| PopplerDocument *document; |
| PopplerPage *page; |
| double width, height; |
| const char *filename = argv[1]; |
| const char *output_filename = argv[2]; |
| const char *page_label = argv[3]; |
| gchar *absolute, *uri; |
| cairo_surface_t *surface; |
| cairo_t *cr; |
| cairo_status_t status; |
| GError *error = NULL; |
| |
| if (argc != 4) |
| FAIL ("usage: pdf2png input_file.pdf output_file.png page"); |
| |
| g_type_init (); |
| |
| if (g_path_is_absolute(filename)) { |
| absolute = g_strdup (filename); |
| } else { |
| gchar *dir = g_get_current_dir (); |
| absolute = g_build_filename (dir, filename, (gchar *) 0); |
| g_free (dir); |
| } |
| |
| uri = g_filename_to_uri (absolute, NULL, &error); |
| g_free (absolute); |
| if (uri == NULL) |
| FAIL (error->message); |
| |
| document = poppler_document_new_from_file (uri, NULL, &error); |
| if (document == NULL) |
| FAIL (error->message); |
| |
| page = poppler_document_get_page_by_label (document, page_label); |
| if (page == NULL) |
| FAIL ("page not found"); |
| |
| poppler_page_get_size (page, &width, &height); |
| |
| surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); |
| cr = cairo_create (surface); |
| cairo_surface_destroy (surface); |
| |
| cairo_set_source_rgb (cr, 1,1,1); |
| cairo_paint (cr); |
| cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); |
| |
| poppler_page_render (page, cr); |
| g_object_unref (page); |
| |
| cairo_pop_group_to_source (cr); |
| cairo_paint (cr); |
| |
| status = cairo_surface_write_to_png (cairo_get_target (cr), |
| output_filename); |
| cairo_destroy (cr); |
| |
| if (status) |
| FAIL (cairo_status_to_string (status)); |
| |
| return 0; |
| } |