1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* 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;
GdkPixbuf *pixbuf;
double width, height;
GError *error;
const char *filename = argv[1];
const char *output_filename = argv[2];
const char *page_label = argv[3];
gchar *absolute, *uri;
if (argc != 4)
FAIL ("usage: pdf2png input_file.pdf output_file.png page");
g_type_init ();
error = NULL;
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);
free (dir);
}
uri = g_filename_to_uri (absolute, NULL, &error);
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);
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
width * PIXELS_PER_POINT,
height * PIXELS_PER_POINT);
gdk_pixbuf_fill (pixbuf, 0xffffffff);
poppler_page_render_to_pixbuf (page, 0, 0, width , height,
PIXELS_PER_POINT, 0, pixbuf);
gdk_pixbuf_save (pixbuf, output_filename, "png", &error, NULL);
if (error != NULL)
FAIL (error->message);
return 0;
}
|
