1 ## libpng v1.6.35
   2 
   3 ### libpng License
   4 <pre>
   5 
   6 This copy of the libpng notices is provided for your convenience.  In case of
   7 any discrepancy between this copy and the notices in the file png.h that is
   8 included in the libpng distribution, the latter shall prevail.
   9 
  10 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
  11 
  12 If you modify libpng you may insert additional notices immediately following
  13 this sentence.
  14 
  15 This code is released under the libpng license.
  16 
  17 libpng versions 1.0.7, July 1, 2000 through 1.6.35, September 29, 2017 are
  18 Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
  19 derived from libpng-1.0.6, and are distributed according to the same
  20 disclaimer and license as libpng-1.0.6 with the following individuals
  21 added to the list of Contributing Authors:
  22 
  23    Simon-Pierre Cadieux
  24    Eric S. Raymond
  25    Mans Rullgard
  26    Cosmin Truta
  27    Gilles Vollant
  28    James Yu
  29    Mandar Sahastrabuddhe
  30    Google Inc.
  31    Vadim Barkov
  32 
  33 and with the following additions to the disclaimer:
  34 
  35    There is no warranty against interference with your enjoyment of the
  36    library or against infringement.  There is no warranty that our
  37    efforts or the library will fulfill any of your particular purposes
  38    or needs.  This library is provided with all faults, and the entire
  39    risk of satisfactory quality, performance, accuracy, and effort is with
  40    the user.
  41 
  42 Some files in the "contrib" directory and some configure-generated
  43 files that are distributed with libpng have other copyright owners and
  44 are released under other open source licenses.
  45 
  46 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
  47 Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
  48 libpng-0.96, and are distributed according to the same disclaimer and
  49 license as libpng-0.96, with the following individuals added to the list
  50 of Contributing Authors:
  51 
  52    Tom Lane
  53    Glenn Randers-Pehrson
  54    Willem van Schaik
  55 
  56 libpng versions 0.89, June 1996, through 0.96, May 1997, are
  57 Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
  58 and are distributed according to the same disclaimer and license as
  59 libpng-0.88, with the following individuals added to the list of
  60 Contributing Authors:
  61 
  62    John Bowler
  63    Kevin Bracey
  64    Sam Bushell
  65    Magnus Holmgren
  66    Greg Roelofs
  67    Tom Tanner
  68 
  69 Some files in the "scripts" directory have other copyright owners
  70 but are released under this license.
  71 
  72 libpng versions 0.5, May 1995, through 0.88, January 1996, are
  73 Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
  74 
  75 For the purposes of this copyright and license, "Contributing Authors"
  76 is defined as the following set of individuals:
  77 
  78    Andreas Dilger
  79    Dave Martindale
  80    Guy Eric Schalnat
  81    Paul Schmidt
  82    Tim Wegner
  83 
  84 The PNG Reference Library is supplied "AS IS".  The Contributing Authors
  85 and Group 42, Inc. disclaim all warranties, expressed or implied,
  86 including, without limitation, the warranties of merchantability and of
  87 fitness for any purpose.  The Contributing Authors and Group 42, Inc.
  88 assume no liability for direct, indirect, incidental, special, exemplary,
  89 or consequential damages, which may result from the use of the PNG
  90 Reference Library, even if advised of the possibility of such damage.
  91 
  92 Permission is hereby granted to use, copy, modify, and distribute this
  93 source code, or portions hereof, for any purpose, without fee, subject
  94 to the following restrictions:
  95 
  96   1. The origin of this source code must not be misrepresented.
  97 
  98   2. Altered versions must be plainly marked as such and must not
  99      be misrepresented as being the original source.
 100 
 101   3. This Copyright notice may not be removed or altered from any
 102      source or altered source distribution.
 103 
 104 The Contributing Authors and Group 42, Inc. specifically permit, without
 105 fee, and encourage the use of this source code as a component to
 106 supporting the PNG file format in commercial products.  If you use this
 107 source code in a product, acknowledgment is not required but would be
 108 appreciated.
 109 
 110 END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
 111 
 112 </pre>