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.
Forthepurposesofthiscopyrightandlicense,"ContributingAuthors"isdenedasthefollowingsetof
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
tnessforanypurpose.TheContributingAuthorsandGroup42,Inc.assumenoliabilityfordirect,
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.
TheContributingAuthorsandGroup42,Inc.specicallypermit,withoutfee,andencouragetheuseof
thissourcecodeasacomponenttosupportingthePNGleformatincommercialproducts.Ifyouuse
this source code in a product, acknowledgment is not required but would be appreciated.
A"png_get_copyright"functionisavailable,forconvenientusein"about"boxesandthelike:
printf("%s",png_get_copyright(NULL));
Also,thePNGlogo(inPNGformat,ofcourse)issuppliedintheles"pngbar.png"and"pngbar.jpg(88x31)
and "pngnow.png" (98x31).
LibpngisOSICertiedOpenSourceSoftware.OSICertiedOpenSourceisacerticationmarkofthe