This copy of the libpng notices is provided for
your convenience.  In case of any discrepancy
between this copy and the notices in the file
png.h that is included in the libpng
distribution, the latter shall prevail.

COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:

If you modify libpng you may insert additional
notices immediately following this sentence.

This code is released under the libpng license.

libpng versions 1.2.6, August 15, 2004,
through 1.5.13, September 27, 2012, are
Copyright (c) 2004, 2006-2012 Glenn
Randers-Pehrson, and are distributed according
to the same disclaimer and license as
libpng-1.2.5 with the following individual added
to the list of Contributing 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" and
"pngbar.jpg (88x31) and "pngnow.png" (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
July 9, 2011
