libpng license

Description

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 1.4.1, February
25, 2010, are Copyright (c) 2004, 2006-2007 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: 

 

The origin of this source code must not be misrepresented. 
 

Altered versions must be plainly marked as such and must not be
misrepresented as being the original source. 
 

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
February 25, 2010 

 

