1libjpeg-turbo Licenses
2======================
3
4libjpeg-turbo is covered by three compatible BSD-style open source licenses:
5
6- The IJG (Independent JPEG Group) License, which is listed in
7  [README.ijg](README.ijg)
8
9  This license applies to the libjpeg API library and associated programs
10  (any code inherited from libjpeg, and any modifications to that code.)
11
12- The Modified (3-clause) BSD License, which is listed below
13
14  This license covers the TurboJPEG API library and associated programs.
15
16- The zlib License, which is listed below
17
18  This license is a subset of the other two, and it covers the libjpeg-turbo
19  SIMD extensions.
20
21
22Complying with the libjpeg-turbo Licenses
23=========================================
24
25This section provides a roll-up of the libjpeg-turbo licensing terms, to the
26best of our understanding.
27
281.  If you are distributing a modified version of the libjpeg-turbo source,
29    then:
30
31    1.  You cannot alter or remove any existing copyright or license notices
32        from the source.
33
34        **Origin**
35        - Clause 1 of the IJG License
36        - Clause 1 of the Modified BSD License
37        - Clauses 1 and 3 of the zlib License
38
39    2.  You must add your own copyright notice to the header of each source
40        file you modified, so others can tell that you modified that file (if
41        there is not an existing copyright header in that file, then you can
42        simply add a notice stating that you modified the file.)
43
44        **Origin**
45        - Clause 1 of the IJG License
46        - Clause 2 of the zlib License
47
48    3.  You must include the IJG README file, and you must not alter any of the
49        copyright or license text in that file.
50
51        **Origin**
52        - Clause 1 of the IJG License
53
542.  If you are distributing only libjpeg-turbo binaries without the source, or
55    if you are distributing an application that statically links with
56    libjpeg-turbo, then:
57
58    1.  Your product documentation must include a message stating:
59
60        This software is based in part on the work of the Independent JPEG
61        Group.
62
63        **Origin**
64        - Clause 2 of the IJG license
65
66    2.  If your binary distribution includes or uses the TurboJPEG API, then
67        your product documentation must include the text of the Modified BSD
68        License.
69
70        **Origin**
71        - Clause 2 of the Modified BSD License
72
733.  You cannot use the name of the IJG or The libjpeg-turbo Project or the
74    contributors thereof in advertising, publicity, etc.
75
76    **Origin**
77    - IJG License
78    - Clause 3 of the Modified BSD License
79
804.  The IJG and The libjpeg-turbo Project do not warrant libjpeg-turbo to be
81    free of defects, nor do we accept any liability for undesirable
82    consequences resulting from your use of the software.
83
84    **Origin**
85    - IJG License
86    - Modified BSD License
87    - zlib License
88
89
90The Modified (3-clause) BSD License
91===================================
92
93Copyright (C)\<YEAR\> \<AUTHOR\>.  All Rights Reserved.
94
95Redistribution and use in source and binary forms, with or without
96modification, are permitted provided that the following conditions are met:
97
98- Redistributions of source code must retain the above copyright notice,
99  this list of conditions and the following disclaimer.
100- Redistributions in binary form must reproduce the above copyright notice,
101  this list of conditions and the following disclaimer in the documentation
102  and/or other materials provided with the distribution.
103- Neither the name of the libjpeg-turbo Project nor the names of its
104  contributors may be used to endorse or promote products derived from this
105  software without specific prior written permission.
106
107THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
108AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
109IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
110ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
111LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
112CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
113SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
114INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
115CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
116ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
117POSSIBILITY OF SUCH DAMAGE.
118
119
120The zlib License
121================
122
123Copyright (C) \<YEAR\>, \<AUTHOR\>.
124
125This software is provided 'as-is', without any express or implied
126warranty.  In no event will the authors be held liable for any damages
127arising from the use of this software.
128
129Permission is granted to anyone to use this software for any purpose,
130including commercial applications, and to alter it and redistribute it
131freely, subject to the following restrictions:
132
1331. The origin of this software must not be misrepresented; you must not
134   claim that you wrote the original software. If you use this software
135   in a product, an acknowledgment in the product documentation would be
136   appreciated but is not required.
1372. Altered source versions must be plainly marked as such, and must not be
138   misrepresented as being the original software.
1393. This notice may not be removed or altered from any source distribution.
140