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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, are derived
from libpng-0.88,
and are 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
END OF COPYRIGHT NOTICE, DISCLAIMER, and
LICENSE.
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).
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