1 ## libpng v1.6.37 2 3 ### libpng License 4 <pre> 5 6 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE 7 ========================================= 8 9 PNG Reference Library License version 2 10 --------------------------------------- 11 12 * Copyright (c) 1995-2019 The PNG Reference Library Authors. 13 * Copyright (c) 2018-2019 Cosmin Truta. 14 * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. 15 * Copyright (c) 1996-1997 Andreas Dilger. 16 * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. 17 18 The software is supplied "as is", without warranty of any kind, 19 express or implied, including, without limitation, the warranties 20 of merchantability, fitness for a particular purpose, title, and 21 non-infringement. In no event shall the Copyright owners, or 22 anyone distributing the software, be liable for any damages or 23 other liability, whether in contract, tort or otherwise, arising 24 from, out of, or in connection with the software, or the use or 25 other dealings in the software, even if advised of the possibility 26 of such damage. 27 28 Permission is hereby granted to use, copy, modify, and distribute 29 this software, or portions hereof, for any purpose, without fee, 30 subject to the following restrictions: 31 32 1. The origin of this software must not be misrepresented; you 33 must not claim that you wrote the original software. If you 34 use this software in a product, an acknowledgment in the product 35 documentation would be appreciated, but is not required. 36 37 2. Altered source versions must be plainly marked as such, and must 38 not be misrepresented as being the original software. 39 40 3. This Copyright notice may not be removed or altered from any 41 source or altered source distribution. 42 43 44 PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35) 45 ----------------------------------------------------------------------- 46 47 libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are 48 Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are 49 derived from libpng-1.0.6, and are distributed according to the same 50 disclaimer and license as libpng-1.0.6 with the following individuals 51 added to the list of Contributing Authors: 52 53 Simon-Pierre Cadieux 54 Eric S. Raymond 55 Mans Rullgard 56 Cosmin Truta 57 Gilles Vollant 58 James Yu 59 Mandar Sahastrabuddhe 60 Google Inc. 61 Vadim Barkov 62 63 and with the following additions to the disclaimer: 64 65 There is no warranty against interference with your enjoyment of 66 the library or against infringement. There is no warranty that our 67 efforts or the library will fulfill any of your particular purposes 68 or needs. This library is provided with all faults, and the entire 69 risk of satisfactory quality, performance, accuracy, and effort is 70 with the user. 71 72 Some files in the "contrib" directory and some configure-generated 73 files that are distributed with libpng have other copyright owners, and 74 are released under other open source licenses. 75 76 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are 77 Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from 78 libpng-0.96, and are distributed according to the same disclaimer and 79 license as libpng-0.96, with the following individuals added to the 80 list of Contributing Authors: 81 82 Tom Lane 83 Glenn Randers-Pehrson 84 Willem van Schaik 85 86 libpng versions 0.89, June 1996, through 0.96, May 1997, are 87 Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88, 88 and are distributed according to the same disclaimer and license as 89 libpng-0.88, with the following individuals added to the list of 90 Contributing Authors: 91 92 John Bowler 93 Kevin Bracey 94 Sam Bushell 95 Magnus Holmgren 96 Greg Roelofs 97 Tom Tanner 98 99 Some files in the "scripts" directory have other copyright owners, 100 but are released under this license. 101 102 libpng versions 0.5, May 1995, through 0.88, January 1996, are 103 Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. 104 105 For the purposes of this copyright and license, "Contributing Authors" 106 is defined as the following set of individuals: 107 108 Andreas Dilger 109 Dave Martindale 110 Guy Eric Schalnat 111 Paul Schmidt 112 Tim Wegner 113 114 The PNG Reference Library is supplied "AS IS". The Contributing 115 Authors and Group 42, Inc. disclaim all warranties, expressed or 116 implied, including, without limitation, the warranties of 117 merchantability and of fitness for any purpose. The Contributing 118 Authors and Group 42, Inc. assume no liability for direct, indirect, 119 incidental, special, exemplary, or consequential damages, which may 120 result from the use of the PNG Reference Library, even if advised of 121 the possibility of such damage. 122 123 Permission is hereby granted to use, copy, modify, and distribute this 124 source code, or portions hereof, for any purpose, without fee, subject 125 to the following restrictions: 126 127 1. The origin of this source code must not be misrepresented. 128 129 2. Altered versions must be plainly marked as such and must not 130 be misrepresented as being the original source. 131 132 3. This Copyright notice may not be removed or altered from any 133 source or altered source distribution. 134 135 The Contributing Authors and Group 42, Inc. specifically permit, 136 without fee, and encourage the use of this source code as a component 137 to supporting the PNG file format in commercial products. If you use 138 this source code in a product, acknowledgment is not required but would 139 be appreciated. 140 141 </pre>