src/png/LICENSE

   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 1.2.6, August 15, 2004, through 1.5.7, December 15, 2011, are
  14 Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
  15 distributed according to the same disclaimer and license as libpng-1.2.5
  16 with the following individual added to the list of Contributing Authors
  17
  18    Cosmin Truta
  19
  20 libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
  21 Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
  22 distributed according to the same disclaimer and license as libpng-1.0.6
  23 with the following individuals added to the list of Contributing Authors
  24
  25    Simon-Pierre Cadieux
  26    Eric S. Raymond
  27    Gilles Vollant
  28
  29 and with the following additions to the disclaimer:
  30
  31    There is no warranty against interference with your enjoyment of the
  32    library or against infringement.  There is no warranty that our
  33    efforts or the library will fulfill any of your particular purposes
  34    or needs.  This library is provided with all faults, and the entire
  35    risk of satisfactory quality, performance, accuracy, and effort is with
  36    the user.
  37
  38 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
  39 Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
  40 distributed according to the same disclaimer and license as libpng-0.96,
  41 with the following individuals added to the list of Contributing Authors:
  42
  43    Tom Lane
  44    Glenn Randers-Pehrson
  45    Willem van Schaik
  46
  47 libpng versions 0.89, June 1996, through 0.96, May 1997, are
  48 Copyright (c) 1996, 1997 Andreas Dilger
  49 Distributed according to the same disclaimer and license as libpng-0.88,
  50 with the following individuals added to the list of Contributing Authors:
  51
  52    John Bowler
  53    Kevin Bracey
  54    Sam Bushell
  55    Magnus Holmgren
  56    Greg Roelofs
  57    Tom Tanner
  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 Authors
  72 and Group 42, Inc. disclaim all warranties, expressed or implied,
  73 including, without limitation, the warranties of merchantability and of
  74 fitness for any purpose.  The Contributing Authors and Group 42, Inc.
  75 assume no liability for direct, indirect, incidental, special, exemplary,
  76 or consequential damages, which may result from the use of the PNG
  77 Reference Library, even if advised of the possibility of such damage.
  78
  79 Permission is hereby granted to use, copy, modify, and distribute this
  80 source code, or portions hereof, for any purpose, without fee, subject
  81 to the following restrictions:
  82
  83 1. The origin of this source code must not be misrepresented.
  84
  85 2. Altered versions must be plainly marked as such and must not
  86    be misrepresented as being the original source.
  87
  88 3. This Copyright notice may not be removed or altered from any
  89    source or altered source distribution.
  90
  91 The Contributing Authors and Group 42, Inc. specifically permit, without
  92 fee, and encourage the use of this source code as a component to
  93 supporting the PNG file format in commercial products.  If you use this
  94 source code in a product, acknowledgment is not required but would be
  95 appreciated.
  96
  97
  98 A "png_get_copyright" function is available, for convenient use in "about"
  99 boxes and the like:
 100
 101    printf("%s",png_get_copyright(NULL));
 102
 103 Also, the PNG logo (in PNG format, of course) is supplied in the
 104 files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
 105
 106 Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is a
 107 certification mark of the Open Source Initiative.
 108
 109 Glenn Randers-Pehrson
 110 glennrp at users.sourceforge.net
 111 December 15, 2011