1
2 This copy of the libpng notices is provided for your convenience. In case of
3 any discrepancy between this copy and the notices in the file png.h that is
4 included in the libpng distribution, the latter shall prevail.
5
6 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
7
8 If you modify libpng you may insert additional notices immediately following
9 this sentence.
10
11 This code is released under the libpng license.
12
13 libpng versions 1.0.7, July 1, 2000, through 1.6.20, December 3, 2015, are
14 Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are
15 derived from libpng-1.0.6, and are distributed according to the same
16 disclaimer and license as libpng-1.0.6 with the following individuals
17 added to the list of Contributing Authors:
18
19 Simon-Pierre Cadieux
20 Eric S. Raymond
21 Mans Rullgard
22 Cosmin Truta
23 Gilles Vollant
24 James Yu
25
26 and with the following additions to the disclaimer:
27
28 There is no warranty against interference with your enjoyment of the
29 library or against infringement. There is no warranty that our
30 efforts or the library will fulfill any of your particular purposes
31 or needs. This library is provided with all faults, and the entire
32 risk of satisfactory quality, performance, accuracy, and effort is with
33 the user.
34
35 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
36 Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
37 libpng-0.96, and are distributed according to the same disclaimer and
38 license as libpng-0.96, with the following individuals added to the list
39 of Contributing Authors:
40
41 Tom Lane
42 Glenn Randers-Pehrson
43 Willem van Schaik
44
45 libpng versions 0.89, June 1996, through 0.96, May 1997, are
46 Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
47 and are distributed according to the same disclaimer and license as
48 libpng-0.88, with the following individuals added to the list of
49 Contributing Authors:
50
51 John Bowler
52 Kevin Bracey
53 Sam Bushell
54 Magnus Holmgren
55 Greg Roelofs
56 Tom Tanner
57
58 libpng versions 0.5, May 1995, through 0.88, January 1996, are
59 Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
60
61 For the purposes of this copyright and license, "Contributing Authors"
62 is defined as the following set of individuals:
63
64 Andreas Dilger
65 Dave Martindale
66 Guy Eric Schalnat
67 Paul Schmidt
68 Tim Wegner
69
70 The PNG Reference Library is supplied "AS IS". The Contributing Authors
71 and Group 42, Inc. disclaim all warranties, expressed or implied,
72 including, without limitation, the warranties of merchantability and of
73 fitness for any purpose. The Contributing Authors and Group 42, Inc.
74 assume no liability for direct, indirect, incidental, special, exemplary,
75 or consequential damages, which may result from the use of the PNG
76 Reference Library, even if advised of the possibility of such damage.
77
78 Permission is hereby granted to use, copy, modify, and distribute this
79 source code, or portions hereof, for any purpose, without fee, subject
80 to the following restrictions:
81
82 1. The origin of this source code must not be misrepresented.
83
84 2. Altered versions must be plainly marked as such and must not
85 be misrepresented as being the original source.
86
87 3. This Copyright notice may not be removed or altered from any
88 source or altered source distribution.
89
90 The Contributing Authors and Group 42, Inc. specifically permit, without
91 fee, and encourage the use of this source code as a component to
92 supporting the PNG file format in commercial products. If you use this
93 source code in a product, acknowledgment is not required but would be
94 appreciated.
95
96 END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
97
98 A "png_get_copyright" function is available, for convenient use in "about"
99 boxes and the like:
100
101 printf("%s", png_get_copyright(NULL));
102
103 Also, the PNG logo (in PNG format, of course) is supplied in the
104 files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
105
106 Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
107 a certification mark of the Open Source Initiative. OSI has not addressed
108 the additional disclaimers inserted at version 1.0.7.
109
110 Glenn Randers-Pehrson
111 glennrp at users.sourceforge.net
112 December 3, 2015