User Manual

63
IBPNG
COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
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PNG Reference Library License version 2
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∗ Copyright (c) 1995-2019 The PNG Reference Library Authors.
∗ Copyright (c) 2018-2019 Cosmin Truta.
∗ Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
∗ Copyright (c) 1996-1997 Andreas Dilger.
∗ Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
The software is supplied "as is", without warranty of any kind, express or implied,
including, without limitation, the warranties of merchantability, fitness for a particular
purpose, title, and non-infringement. In no event shall the Copyright owners, or
anyone distributing the software, be liable for any damages or other liability, whether in
contract, tort or otherwise, arising from, out of, or in connection with the software, or the
use or
other dealings in the software, even if advised of the possibility of such damage.
Permission is hereby granted to use, copy, modify, and distribute this software, or
portions hereof, for any purpose, without fee, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you
wrote the original software. If you use this software in a product, an
acknowledgment in the product documentation would be appreciated, but is not
required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This Copyright notice may not be removed or altered from any source or altered
source distribution.
PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
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libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are Copyright (c) 2000-
2002, 2004, 2006-2018 Glenn Randers-Pehrson, are derived from libpng-1.0.6, 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
Mans Rullgard
Cosmin Truta
Gilles Vollant
James Yu
Mandar Sahastrabuddhe
Google Inc.
Vadim Barkov
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.
Some files in the "contrib" directory and some configure-generated files that are
distributed with libpng have other copyright owners, and are released under other open
source licenses.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are Copyright (c)
1998-2000 Glenn Randers-Pehrson, are derived from libpng-0.96, 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, 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: