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comparison mupdf-source/include/mupdf/pdf/image-rewriter.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 // Copyright (C) 2004-2021 Artifex Software, Inc.
2 //
3 // This file is part of MuPDF.
4 //
5 // MuPDF is free software: you can redistribute it and/or modify it under the
6 // terms of the GNU Affero General Public License as published by the Free
7 // Software Foundation, either version 3 of the License, or (at your option)
8 // any later version.
9 //
10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
13 // details.
14 //
15 // You should have received a copy of the GNU Affero General Public License
16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
17 //
18 // Alternative licensing terms are available from the licensor.
19 // For commercial licensing, see <https://www.artifex.com/> or contact
20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
21 // CA 94129, USA, for further information.
22
23 #ifndef MUPDF_PDF_IMAGE_REWRITER_H
24 #define MUPDF_PDF_IMAGE_REWRITER_H
25
26 #include "mupdf/pdf/document.h"
27
28 enum
29 {
30 FZ_SUBSAMPLE_AVERAGE,
31 FZ_SUBSAMPLE_BICUBIC
32 };
33
34 enum
35 {
36 FZ_RECOMPRESS_NEVER,
37 FZ_RECOMPRESS_SAME,
38 FZ_RECOMPRESS_LOSSLESS,
39 FZ_RECOMPRESS_JPEG,
40 FZ_RECOMPRESS_J2K,
41 FZ_RECOMPRESS_FAX
42 };
43
44 typedef struct
45 {
46 int color_lossless_image_subsample_method;
47 int color_lossy_image_subsample_method;
48 int color_lossless_image_subsample_threshold; /* 0, or the threshold dpi at which to subsample color images. */
49 int color_lossless_image_subsample_to; /* 0, or the dpi to subsample to */
50 int color_lossy_image_subsample_threshold; /* 0, or the threshold dpi at which to subsample color images. */
51 int color_lossy_image_subsample_to; /* 0, or the dpi to subsample to */
52 int color_lossless_image_recompress_method; /* Which compression method to use for losslessly compressed color images? */
53 int color_lossy_image_recompress_method; /* Which compression method to use for lossy compressed color images? */
54 char *color_lossy_image_recompress_quality;
55 char *color_lossless_image_recompress_quality;
56 int gray_lossless_image_subsample_method;
57 int gray_lossy_image_subsample_method;
58 int gray_lossless_image_subsample_threshold; /* 0, or the threshold at which to subsample gray images. */
59 int gray_lossless_image_subsample_to; /* 0, or the dpi to subsample to */
60 int gray_lossy_image_subsample_threshold; /* 0, or the threshold at which to subsample gray images. */
61 int gray_lossy_image_subsample_to; /* 0, or the dpi to subsample to */
62 int gray_lossless_image_recompress_method; /* Which compression method to use for losslessly compressed gray images? */
63 int gray_lossy_image_recompress_method; /* Which compression method to use for lossy compressed gray images? */
64 char *gray_lossy_image_recompress_quality;
65 char *gray_lossless_image_recompress_quality;
66 int bitonal_image_subsample_method;
67 int bitonal_image_subsample_threshold; /* 0, or the threshold at which to subsample bitonal images. */
68 int bitonal_image_subsample_to; /* 0, or the dpi to subsample to */
69 int bitonal_image_recompress_method; /* Which compression method to use for bitonal images? */
70 char *bitonal_image_recompress_quality;
71 } pdf_image_rewriter_options;
72
73 /*
74 Rewrite images within the given document.
75 */
76 void pdf_rewrite_images(fz_context *ctx, pdf_document *doc, pdf_image_rewriter_options *opts);
77
78 #endif