Authors
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 -
October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson,
and are distributed according to the same disclaimer
and license as libpng-1.0.6 with the following
individuals added to the list of Contributing Authors
Simon-Pierre Cadieux
Eric S. Raymond
Gilles Vollant
and with the following additions to the disclaimer:
There is no warranty against interference with your
enjoyment of the library or against infringement.
There is no warranty that our efforts or the library will
fulfill any of your particular purposes or needs.
This library is provided with all faults, and the entire
risk of satisfactory quality, performance, accuracy,
and effort is with the user.
libpng versions 0.97, January 1998, through 1.0.6,
March 20, 2000, are
Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and
are distributed according to the same disclaimer and
license as libpng-0.96, with the following individuals
added to the list of Contributing Authors:
Tom Lane
Glenn Randers-Pehrson
Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May
1997, are
Copyright (c) 1996, 1997 Andreas Dilger
Distributed according to the same disclaimer and
license as libpng-0.88, with the following individuals
added to the list of Contributing Authors:
John Bowler
Kevin Bracey
Sam Bushell
Magnus Holmgren
Greg Roelofs
Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January
1996, are
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42,
Inc.
For the purposes of this copyright and license,
"Contributing Authors" is defined as the following set
of individuals:
Andreas Dilger
Dave Martindale
Guy Eric Schalnat
Paul Schmidt
Tim Wegner
The PNG Reference Library is supplied "AS IS". The
Contributing Authors and Group 42, Inc. disclaim all
warranties, expressed or implied, including, without
limitation, the warranties of merchantability and of
fitness for any purpose. The Contributing Authors and
Group 42, Inc. assume no liability for direct, indirect,
incidental, special, exemplary, or consequential
damages, which may result from the use of the PNG
Reference Library, even if advised of the possibility of
such damage.
Permission is hereby granted to use, copy, modify,
and distribute this source code, or portions hereof, for
any purpose, without fee, subject to the following
restrictions:
1. The origin of this source code must not be
misrepresented.
2. Altered versions must be plainly marked as such
and must not be misrepresented as being the original
source.
3. This Copyright notice may not be removed or
altered from any source or altered source distribution.
The Contributing Authors and Group 42, Inc.
specifically permit, without fee, and encourage the
use of this source code as a component to supporting
the PNG file format in commercial products.
If you use this source code in a product,
acknowledgment is not required but would be
appreciated.
A "png_get_copyright" function is available, for
convenient use in "about" boxes and the like:
printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is
supplied in the files "pngbar.png.jpg" and "pngbar.jpg
(88x31) and "pngnow.png.jpg" (98x31).
Libpng is OSI Certified Open Source Software. OSI
Certified Open Source is a certification mark of the
Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
February 25, 2010
This software is based in part on the work of the
FreeType Team.
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