summaryrefslogtreecommitdiff
blob: 855ed485c1f69f6398e9d49563872b1806e764fb (plain)
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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
.. title:: Third Party Libraries Used by Ghostscript and GhostPDL

.. meta::
   :description: The Ghostscript documentation
   :keywords: Ghostscript, documentation, ghostpdl


.. _thirdparty.htm:


Third Party Libraries Used by Ghostscript and GhostPDL
=========================================================


The table below details the third party libraries that Ghostscript and/or GhostPDL include, the versions QA tested and shipped with our releases, the relevant license, and the "upstream" URL.


.. list-table::
   :header-rows: 1
   :widths: 20 10 25 25 20

   * - Library Name
     - Version
     - Function
     - License
     - URL
   * - CUPS

       (AGPL Release Only)

     - 2.8.0
     - CUPS raster format output
     - GPL Version 3
     - http://www.cups.org/
   * - eXpat
     - 2.4.1
     - XML parsing for XPS interpreter
     - MIT/eXpat License
     - http://expat.sourceforge.net/
   * - FreeType
     - 2.12.1
     - Font scaling and rendering

       for Ghostscript
     - FreeType License

       (BSD-style license

       with a credit clause)

     - http://www.freetype.org/
   * - jbig2dec
     - 0.19
     - JBIG2 decoding for the

       PDF interpreter
     - Licensed with Ghostscript/GhostPDL

       (copyright owned by Artifex)

     - http://www.ghostscript.com/
   * - libjpeg
     - 9e with patches
     - JPEG/DCT decoding/encoding
     - "Free" Can be used in

       commercial applications

       without royalty,

       with acknowledgement.
     - http://www.ijg.org/
   * - LittleCMS2 mt

       (lcms2mt - thread

       safe fork of lcms2)

     - 2.10mt
     - ICC profile based color conversion

       and management

     - MIT LICENSE
     - http://www.ghostscript.com/
   * - libpng
     - 1.6.37
     - PNG image encoding/decoding
     - libpng license - classified as

       "a permissive free software license"
     - http://www.libpng.org/
   * - OpenJPEG
     - 2.4.0
     - JPEG2000 image decoding for the

       PDF interpreter

     - BSD-style
     - http://www.openjpeg.org/
   * - zlib
     - 1.2.12
     - (De)Flate compression
     - zlib license - classified as

       "a permissive free software license"
     - http://www.zlib.net/
   * - libtiff
     - 4.3.0
     - TIFF image encoding/decoding
     - BSD-style
     - http://www.remotesensing.org/libtiff


The following are optional.



.. list-table::
   :header-rows: 1
   :widths: 20 10 25 25 20

   * - Library Name
     - Version
     - Function
     - License
     - URL
   * - tesseract
     - 4.1.0
       with patches
     - Optical Character Recognition (OCR) library
     - Apache License 2.0
     - https://github.com/tesseract-ocr/tesseract
   * - leptonica
     - 1.80.0 with patches
     - Image processing toolkit - support

       library for tesseract OCR

     - Leptonica License

       "a permissive free software license"

     - http://www.leptonica.org/




The following are no-cost, open source licensed, but not GPL compatible.



.. list-table::
   :header-rows: 1
   :widths: 20 10 25 25 20

   * - Library Name
     - Version
     - Function
     - License
     - URL
   * - jpegxr (JPEG XR reference software)
     - 1.8
     - HDPhoto/JPEG-XR image

       decoding for the XPS interpreter
     - ITU/ISO/IEC "Free" License

       Reference implementation
     - http://www.itu.int/rec/T-REC-T.835




The following is optional & relevant to Artifex Software commercial releases only.


.. list-table::
   :header-rows: 1
   :widths: 20 10 25 25 20

   * - Library Name
     - Version
     - Function
     - License
     - URL
   * - Monotype UFST
     - 5.x/6.x with patches
     - Access, scale and render

       Monotype MicroType fonts
     - Commercial
     - https://www.monotype.com/


















.. include:: footer.rst