1
2This copy of the libpng notices is provided for your convenience.  In case of
3any discrepancy between this copy and the notices in the file png.h that is
4included in the libpng distribution, the latter shall prevail.
5
6COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
7
8If you modify libpng you may insert additional notices immediately following
9this sentence.
10
11This code is released under the libpng license.
12
13libpng versions 1.2.6, August 15, 2004, through 1.2.46, July 9, 2011, are
14Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
15distributed according to the same disclaimer and license as libpng-1.2.5
16with the following individual added to the list of Contributing Authors
17
18   Cosmin Truta
19
20libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
21Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
22distributed according to the same disclaimer and license as libpng-1.0.6
23with the following individuals added to the list of Contributing Authors
24
25   Simon-Pierre Cadieux
26   Eric S. Raymond
27   Gilles Vollant
28
29and with the following additions to the disclaimer:
30
31   There is no warranty against interference with your enjoyment of the
32   library or against infringement.  There is no warranty that our
33   efforts or the library will fulfill any of your particular purposes
34   or needs.  This library is provided with all faults, and the entire
35   risk of satisfactory quality, performance, accuracy, and effort is with
36   the user.
37
38libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
39Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
40distributed according to the same disclaimer and license as libpng-0.96,
41with the following individuals added to the list of Contributing Authors:
42
43   Tom Lane
44   Glenn Randers-Pehrson
45   Willem van Schaik
46
47libpng versions 0.89, June 1996, through 0.96, May 1997, are
48Copyright (c) 1996, 1997 Andreas Dilger
49Distributed according to the same disclaimer and license as libpng-0.88,
50with the following individuals added to the list of Contributing Authors:
51
52   John Bowler
53   Kevin Bracey
54   Sam Bushell
55   Magnus Holmgren
56   Greg Roelofs
57   Tom Tanner
58
59libpng versions 0.5, May 1995, through 0.88, January 1996, are
60Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
61
62For the purposes of this copyright and license, "Contributing Authors"
63is defined as the following set of individuals:
64
65   Andreas Dilger
66   Dave Martindale
67   Guy Eric Schalnat
68   Paul Schmidt
69   Tim Wegner
70
71The PNG Reference Library is supplied "AS IS".  The Contributing Authors
72and Group 42, Inc. disclaim all warranties, expressed or implied,
73including, without limitation, the warranties of merchantability and of
74fitness for any purpose.  The Contributing Authors and Group 42, Inc.
75assume no liability for direct, indirect, incidental, special, exemplary,
76or consequential damages, which may result from the use of the PNG
77Reference Library, even if advised of the possibility of such damage.
78
79Permission is hereby granted to use, copy, modify, and distribute this
80source code, or portions hereof, for any purpose, without fee, subject
81to the following restrictions:
82
831. The origin of this source code must not be misrepresented.
84
852. Altered versions must be plainly marked as such and must not
86   be misrepresented as being the original source.
87
883. This Copyright notice may not be removed or altered from any
89   source or altered source distribution.
90
91The Contributing Authors and Group 42, Inc. specifically permit, without
92fee, and encourage the use of this source code as a component to
93supporting the PNG file format in commercial products.  If you use this
94source code in a product, acknowledgment is not required but would be
95appreciated.
96
97
98A "png_get_copyright" function is available, for convenient use in "about"
99boxes and the like:
100
101   printf("%s",png_get_copyright(NULL));
102
103Also, the PNG logo (in PNG format, of course) is supplied in the
104files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
105
106Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is a
107certification mark of the Open Source Initiative.
108
109Glenn Randers-Pehrson
110glennrp at users.sourceforge.net
111July 9, 2011
112