Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/include/mupdf/pdf/image-rewriter.h @ 46:7ee69f120f19 default tip

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
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1 // Copyright (C) 2004-2021 Artifex Software, Inc.
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2 //
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3 // This file is part of MuPDF.
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4 //
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5 // MuPDF is free software: you can redistribute it and/or modify it under the
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6 // terms of the GNU Affero General Public License as published by the Free
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7 // Software Foundation, either version 3 of the License, or (at your option)
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8 // any later version.
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9 //
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10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
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11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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13 // details.
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14 //
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15 // You should have received a copy of the GNU Affero General Public License
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16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
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17 //
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18 // Alternative licensing terms are available from the licensor.
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19 // For commercial licensing, see <https://www.artifex.com/> or contact
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20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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21 // CA 94129, USA, for further information.
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22
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23 #ifndef MUPDF_PDF_IMAGE_REWRITER_H
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24 #define MUPDF_PDF_IMAGE_REWRITER_H
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25
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26 #include "mupdf/pdf/document.h"
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27
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28 enum
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29 {
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30 FZ_SUBSAMPLE_AVERAGE,
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31 FZ_SUBSAMPLE_BICUBIC
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32 };
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33
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34 enum
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35 {
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36 FZ_RECOMPRESS_NEVER,
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37 FZ_RECOMPRESS_SAME,
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38 FZ_RECOMPRESS_LOSSLESS,
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39 FZ_RECOMPRESS_JPEG,
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40 FZ_RECOMPRESS_J2K,
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41 FZ_RECOMPRESS_FAX
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42 };
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43
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44 typedef struct
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45 {
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46 int color_lossless_image_subsample_method;
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47 int color_lossy_image_subsample_method;
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48 int color_lossless_image_subsample_threshold; /* 0, or the threshold dpi at which to subsample color images. */
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49 int color_lossless_image_subsample_to; /* 0, or the dpi to subsample to */
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50 int color_lossy_image_subsample_threshold; /* 0, or the threshold dpi at which to subsample color images. */
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51 int color_lossy_image_subsample_to; /* 0, or the dpi to subsample to */
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52 int color_lossless_image_recompress_method; /* Which compression method to use for losslessly compressed color images? */
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53 int color_lossy_image_recompress_method; /* Which compression method to use for lossy compressed color images? */
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54 char *color_lossy_image_recompress_quality;
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55 char *color_lossless_image_recompress_quality;
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56 int gray_lossless_image_subsample_method;
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57 int gray_lossy_image_subsample_method;
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58 int gray_lossless_image_subsample_threshold; /* 0, or the threshold at which to subsample gray images. */
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59 int gray_lossless_image_subsample_to; /* 0, or the dpi to subsample to */
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60 int gray_lossy_image_subsample_threshold; /* 0, or the threshold at which to subsample gray images. */
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61 int gray_lossy_image_subsample_to; /* 0, or the dpi to subsample to */
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62 int gray_lossless_image_recompress_method; /* Which compression method to use for losslessly compressed gray images? */
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63 int gray_lossy_image_recompress_method; /* Which compression method to use for lossy compressed gray images? */
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64 char *gray_lossy_image_recompress_quality;
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65 char *gray_lossless_image_recompress_quality;
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66 int bitonal_image_subsample_method;
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67 int bitonal_image_subsample_threshold; /* 0, or the threshold at which to subsample bitonal images. */
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68 int bitonal_image_subsample_to; /* 0, or the dpi to subsample to */
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69 int bitonal_image_recompress_method; /* Which compression method to use for bitonal images? */
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70 char *bitonal_image_recompress_quality;
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71 } pdf_image_rewriter_options;
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72
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73 /*
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74 Rewrite images within the given document.
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75 */
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76 void pdf_rewrite_images(fz_context *ctx, pdf_document *doc, pdf_image_rewriter_options *opts);
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77
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78 #endif