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