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 libpng versions 1.0.7, July 1, 2000, through 1.2.5rc3, September 18, 2002, are
  12 Copyright (c) 2000-2002 Glenn Randers-Pehrson
  13 and are distributed according to the same disclaimer and license as libpng-1.0.6
  14 with the following individuals added to the list of Contributing Authors
  15
  16    Simon-Pierre Cadieux
  17    Eric S. Raymond
  18    Gilles Vollant
  19
  20 and with the following additions to the disclaimer:
  21
  22    There is no warranty against interference with your enjoyment of the
  23    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 with
  27    the user.
  28
  29 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
  30 Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
  31 distributed according to the same disclaimer and license as libpng-0.96,
  32 with the following individuals added to the list of Contributing Authors:
  33
  34    Tom Lane
  35    Glenn Randers-Pehrson
  36    Willem van Schaik
  37
  38 libpng versions 0.89, June 1996, through 0.96, May 1997, are
  39 Copyright (c) 1996, 1997 Andreas Dilger
  40 Distributed according to the same disclaimer and license as libpng-0.88,
  41 with the following individuals added to the list of Contributing Authors:
  42
  43    John Bowler
  44    Kevin Bracey
  45    Sam Bushell
  46    Magnus Holmgren
  47    Greg Roelofs
  48    Tom Tanner
  49
  50 libpng versions 0.5, May 1995, through 0.88, January 1996, are
  51 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  52
  53 For the purposes of this copyright and license, "Contributing Authors"
  54 is defined as the following set of individuals:
  55
  56    Andreas Dilger
  57    Dave Martindale
  58    Guy Eric Schalnat
  59    Paul Schmidt
  60    Tim Wegner
  61
  62 The PNG Reference Library is supplied "AS IS".  The Contributing Authors
  63 and Group 42, Inc. disclaim all warranties, expressed or implied,
  64 including, without limitation, the warranties of merchantability and of
  65 fitness for any purpose.  The Contributing Authors and Group 42, Inc.
  66 assume no liability for direct, indirect, incidental, special, exemplary,
  67 or consequential damages, which may result from the use of the PNG
  68 Reference Library, even if advised of the possibility of such damage.
  69
  70 Permission is hereby granted to use, copy, modify, and distribute this
  71 source code, or portions hereof, for any purpose, without fee, subject
  72 to the following restrictions:
  73
  74 1. The origin of this source code must not be misrepresented.
  75
  76 2. Altered versions must be plainly marked as such and must not
  77    be misrepresented as being the original source.
  78
  79 3. This Copyright notice may not be removed or altered from any
  80    source or altered source distribution.
  81
  82 The Contributing Authors and Group 42, Inc. specifically permit, without
  83 fee, and encourage the use of this source code as a component to
  84 supporting the PNG file format in commercial products.  If you use this
  85 source code in a product, acknowledgment is not required but would be
  86 appreciated.
  87
  88
  89 A "png_get_copyright" function is available, for convenient use in "about"
  90 boxes and the like:
  91
  92    printf("%s",png_get_copyright(NULL));
  93
  94 Also, the PNG logo (in PNG format, of course) is supplied in the
  95 files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
  96
  97 Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is a
  98 certification mark of the Open Source Initiative.
  99
 100 Glenn Randers-Pehrson
 101 randeg@alum.rpi.edu
 102 September 18, 2002