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