1 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
2 =========================================
4 PNG Reference Library License version 2
5 ---------------------------------------
7 * Copyright (c) 1995-2019 The PNG Reference Library Authors.
8 * Copyright (c) 2018-2019 Cosmin Truta.
9 * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
10 * Copyright (c) 1996-1997 Andreas Dilger.
11 * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
13 The software is supplied "as is", without warranty of any kind,
14 express or implied, including, without limitation, the warranties
15 of merchantability, fitness for a particular purpose, title, and
16 non-infringement. In no event shall the Copyright owners, or
17 anyone distributing the software, be liable for any damages or
18 other liability, whether in contract, tort or otherwise, arising
19 from, out of, or in connection with the software, or the use or
20 other dealings in the software, even if advised of the possibility
23 Permission is hereby granted to use, copy, modify, and distribute
24 this software, or portions hereof, for any purpose, without fee,
25 subject to the following restrictions:
27 1. The origin of this software must not be misrepresented; you
28 must not claim that you wrote the original software. If you
29 use this software in a product, an acknowledgment in the product
30 documentation would be appreciated, but is not required.
32 2. Altered source versions must be plainly marked as such, and must
33 not be misrepresented as being the original software.
35 3. This Copyright notice may not be removed or altered from any
36 source or altered source distribution.
39 PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
40 -----------------------------------------------------------------------
42 libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
43 Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
44 derived from libpng-1.0.6, and are distributed according to the same
45 disclaimer and license as libpng-1.0.6 with the following individuals
46 added to the list of Contributing Authors:
58 and with the following additions to the disclaimer:
60 There is no warranty against interference with your enjoyment of
61 the library or against infringement. There is no warranty that our
62 efforts or the library will fulfill any of your particular purposes
63 or needs. This library is provided with all faults, and the entire
64 risk of satisfactory quality, performance, accuracy, and effort is
67 Some files in the "contrib" directory and some configure-generated
68 files that are distributed with libpng have other copyright owners, and
69 are released under other open source licenses.
71 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
72 Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
73 libpng-0.96, and are distributed according to the same disclaimer and
74 license as libpng-0.96, with the following individuals added to the
75 list of Contributing Authors:
81 libpng versions 0.89, June 1996, through 0.96, May 1997, are
82 Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
83 and are distributed according to the same disclaimer and license as
84 libpng-0.88, with the following individuals added to the list of
94 Some files in the "scripts" directory have other copyright owners,
95 but are released under this license.
97 libpng versions 0.5, May 1995, through 0.88, January 1996, are
98 Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
100 For the purposes of this copyright and license, "Contributing Authors"
101 is defined as the following set of individuals:
109 The PNG Reference Library is supplied "AS IS". The Contributing
110 Authors and Group 42, Inc. disclaim all warranties, expressed or
111 implied, including, without limitation, the warranties of
112 merchantability and of fitness for any purpose. The Contributing
113 Authors and Group 42, Inc. assume no liability for direct, indirect,
114 incidental, special, exemplary, or consequential damages, which may
115 result from the use of the PNG Reference Library, even if advised of
116 the possibility of such damage.
118 Permission is hereby granted to use, copy, modify, and distribute this
119 source code, or portions hereof, for any purpose, without fee, subject
120 to the following restrictions:
122 1. The origin of this source code must not be misrepresented.
124 2. Altered versions must be plainly marked as such and must not
125 be misrepresented as being the original source.
127 3. This Copyright notice may not be removed or altered from any
128 source or altered source distribution.
130 The Contributing Authors and Group 42, Inc. specifically permit,
131 without fee, and encourage the use of this source code as a component
132 to supporting the PNG file format in commercial products. If you use
133 this source code in a product, acknowledgment is not required but would