1 
   2 This copy of the libpng notices is provided for your convenience.  In case of
   3 any discrepancy between this copy and the notices in the file png.h that is
   4 included in the libpng distribution, the latter shall prevail.
   5 
   6 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
   7 
   8 If you modify libpng you may insert additional notices immediately following
   9 this sentence.
  10 
  11 This code is released under the libpng license.
  12 
  13 libpng versions 1.0.7, July 1, 2000 through 1.6.23, June 9, 2016 are
  14 Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
  15 derived from libpng-1.0.6, and are distributed according to the same
  16 disclaimer and license as libpng-1.0.6 with the following individuals
  17 added to the list of Contributing Authors:
  18 
  19    Simon-Pierre Cadieux
  20    Eric S. Raymond
  21    Mans Rullgard
  22    Cosmin Truta
  23    Gilles Vollant
  24    James Yu
  25 
  26 and with the following additions to the disclaimer:
  27 
  28    There is no warranty against interference with your enjoyment of the
  29    library or against infringement.  There is no warranty that our
  30    efforts or the library will fulfill any of your particular purposes
  31    or needs.  This library is provided with all faults, and the entire
  32    risk of satisfactory quality, performance, accuracy, and effort is with
  33    the user.
  34 
  35 Some files in the "contrib" directory and some configure-generated
  36 files that are distributed with libpng have other copyright owners and
  37 are released under other open source licenses.
  38 
  39 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
  40 Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
  41 libpng-0.96, and are distributed according to the same disclaimer and
  42 license as libpng-0.96, with the following individuals added to the list
  43 of Contributing Authors:
  44 
  45    Tom Lane
  46    Glenn Randers-Pehrson
  47    Willem van Schaik
  48 
  49 libpng versions 0.89, June 1996, through 0.96, May 1997, are
  50 Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
  51 and are distributed according to the same disclaimer and license as
  52 libpng-0.88, with the following individuals added to the list of
  53 Contributing Authors:
  54 
  55    John Bowler
  56    Kevin Bracey
  57    Sam Bushell
  58    Magnus Holmgren
  59    Greg Roelofs
  60    Tom Tanner
  61 
  62 Some files in the "scripts" directory have other copyright owners
  63 but are released under this license.
  64 
  65 libpng versions 0.5, May 1995, through 0.88, January 1996, are
  66 Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
  67 
  68 For the purposes of this copyright and license, "Contributing Authors"
  69 is defined as the following set of individuals:
  70 
  71    Andreas Dilger
  72    Dave Martindale
  73    Guy Eric Schalnat
  74    Paul Schmidt
  75    Tim Wegner
  76 
  77 The PNG Reference Library is supplied "AS IS".  The Contributing Authors
  78 and Group 42, Inc. disclaim all warranties, expressed or implied,
  79 including, without limitation, the warranties of merchantability and of
  80 fitness for any purpose.  The Contributing Authors and Group 42, Inc.
  81 assume no liability for direct, indirect, incidental, special, exemplary,
  82 or consequential damages, which may result from the use of the PNG
  83 Reference Library, even if advised of the possibility of such damage.
  84 
  85 Permission is hereby granted to use, copy, modify, and distribute this
  86 source code, or portions hereof, for any purpose, without fee, subject
  87 to the following restrictions:
  88 
  89   1. The origin of this source code must not be misrepresented.
  90 
  91   2. Altered versions must be plainly marked as such and must not
  92      be misrepresented as being the original source.
  93 
  94   3. This Copyright notice may not be removed or altered from any
  95      source or altered source distribution.
  96 
  97 The Contributing Authors and Group 42, Inc. specifically permit, without
  98 fee, and encourage the use of this source code as a component to
  99 supporting the PNG file format in commercial products.  If you use this
 100 source code in a product, acknowledgment is not required but would be
 101 appreciated.
 102 
 103 END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
 104 
 105 TRADEMARK:
 106 
 107 The name "libpng" has not been registered by the Copyright owner
 108 as a trademark in any jurisdiction.  However, because libpng has
 109 been distributed and maintained world-wide, continually since 1995,
 110 the Copyright owner claims "common-law trademark protection" in any
 111 jurisdiction where common-law trademark is recognized.
 112 
 113 OSI CERTIFICATION:
 114 
 115 Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is
 116 a certification mark of the Open Source Initiative. OSI has not addressed
 117 the additional disclaimers inserted at version 1.0.7.
 118 
 119 EXPORT CONTROL:
 120 
 121 The Copyright owner believes that the Export Control Classification
 122 Number (ECCN) for libpng is EAR99, which means not subject to export
 123 controls or International Traffic in Arms Regulations (ITAR) because
 124 it is open source, publicly available software, that does not contain
 125 any encryption software.  See the EAR, paragraphs 734.3(b)(3) and
 126 734.7(b).
 127 
 128 Glenn Randers-Pehrson
 129 glennrp at users.sourceforge.net
 130 June 9, 2016