| COPYRIGHT NOTICE, DISCLAIMER, and LICENSE |
| ========================================= |
| |
| PNG Reference Library License version 2 |
| --------------------------------------- |
| |
| * Copyright (c) 1995-2022 The PNG Reference Library Authors. |
| * Copyright (c) 2018-2022 Cosmin Truta. |
| * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. |
| * Copyright (c) 1996-1997 Andreas Dilger. |
| * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. |
| |
| The software is supplied "as is", without warranty of any kind, |
| express or implied, including, without limitation, the warranties |
| of merchantability, fitness for a particular purpose, title, and |
| non-infringement. In no event shall the Copyright owners, or |
| anyone distributing the software, be liable for any damages or |
| other liability, whether in contract, tort or otherwise, arising |
| from, out of, or in connection with the software, or the use or |
| other dealings in the software, even if advised of the possibility |
| of such damage. |
| |
| Permission is hereby granted to use, copy, modify, and distribute |
| this software, or portions hereof, for any purpose, without fee, |
| subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you |
| must not claim that you wrote the original software. If you |
| use this software in a product, an acknowledgment in the product |
| documentation would be appreciated, but is not required. |
| |
| 2. Altered source versions must be plainly marked as such, and must |
| not be misrepresented as being the original software. |
| |
| 3. This Copyright notice may not be removed or altered from any |
| source or altered source distribution. |
| |
| |
| PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35) |
| ----------------------------------------------------------------------- |
| |
| libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are |
| Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are |
| derived from libpng-1.0.6, and are distributed according to the same |
| disclaimer and license as libpng-1.0.6 with the following individuals |
| added to the list of Contributing Authors: |
| |
| Simon-Pierre Cadieux |
| Eric S. Raymond |
| Mans Rullgard |
| Cosmin Truta |
| Gilles Vollant |
| James Yu |
| Mandar Sahastrabuddhe |
| Google Inc. |
| Vadim Barkov |
| |
| and with the following additions to the disclaimer: |
| |
| There is no warranty against interference with your enjoyment of |
| the library or against infringement. There is no warranty that our |
| efforts or the library will fulfill any of your particular purposes |
| or needs. This library is provided with all faults, and the entire |
| risk of satisfactory quality, performance, accuracy, and effort is |
| with the user. |
| |
| Some files in the "contrib" directory and some configure-generated |
| files that are distributed with libpng have other copyright owners, and |
| are released under other open source licenses. |
| |
| libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are |
| Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from |
| libpng-0.96, and are distributed according to the same disclaimer and |
| license as libpng-0.96, with the following individuals added to the |
| list of Contributing Authors: |
| |
| Tom Lane |
| Glenn Randers-Pehrson |
| Willem van Schaik |
| |
| libpng versions 0.89, June 1996, through 0.96, May 1997, are |
| Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88, |
| and are distributed according to the same disclaimer and license as |
| libpng-0.88, with the following individuals added to the list of |
| Contributing Authors: |
| |
| John Bowler |
| Kevin Bracey |
| Sam Bushell |
| Magnus Holmgren |
| Greg Roelofs |
| Tom Tanner |
| |
| Some files in the "scripts" directory have other copyright owners, |
| but are released under this license. |
| |
| libpng versions 0.5, May 1995, through 0.88, January 1996, are |
| Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. |
| |
| For the purposes of this copyright and license, "Contributing Authors" |
| is defined as the following set of individuals: |
| |
| Andreas Dilger |
| Dave Martindale |
| Guy Eric Schalnat |
| Paul Schmidt |
| Tim Wegner |
| |
| The PNG Reference Library is supplied "AS IS". The Contributing |
| Authors and Group 42, Inc. disclaim all warranties, expressed or |
| implied, including, without limitation, the warranties of |
| merchantability and of fitness for any purpose. The Contributing |
| Authors and Group 42, Inc. assume no liability for direct, indirect, |
| incidental, special, exemplary, or consequential damages, which may |
| result from the use of the PNG Reference Library, even if advised of |
| the possibility of such damage. |
| |
| Permission is hereby granted to use, copy, modify, and distribute this |
| source code, or portions hereof, for any purpose, without fee, subject |
| to the following restrictions: |
| |
| 1. The origin of this source code must not be misrepresented. |
| |
| 2. Altered versions must be plainly marked as such and must not |
| be misrepresented as being the original source. |
| |
| 3. This Copyright notice may not be removed or altered from any |
| source or altered source distribution. |
| |
| The Contributing Authors and Group 42, Inc. specifically permit, |
| without fee, and encourage the use of this source code as a component |
| to supporting the PNG file format in commercial products. If you use |
| this source code in a product, acknowledgment is not required but would |
| be appreciated. |