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 version 1.2.6, September 12, 2004, is
  12 Copyright (c) 2004 Glenn Randers-Pehrson, and is
  13 distributed according to the same disclaimer and license as libpng-1.2.5
  14 with the following individual added to the list of Contributing Authors
  15
  16    Cosmin Truta
  17
  18 libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
  19 Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
  20 distributed according to the same disclaimer and license as libpng-1.0.6
  21 with the following individuals added to the list of Contributing Authors
  22
  23    Simon-Pierre Cadieux
  24    Eric S. Raymond
  25    Gilles Vollant
  26
  27 and with the following additions to the disclaimer:
  28
  29    There is no warranty against interference with your enjoyment of the
  30    library or against infringement.  There is no warranty that our
  31    efforts or the library will fulfill any of your particular purposes
  32    or needs.  This library is provided with all faults, and the entire
  33    risk of satisfactory quality, performance, accuracy, and effort is with
  34    the user.
  35
  36 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
  37 Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
  38 distributed according to the same disclaimer and license as libpng-0.96,
  39 with the following individuals added to the list of Contributing Authors:
  40
  41    Tom Lane
  42    Glenn Randers-Pehrson
  43    Willem van Schaik
  44
  45 libpng versions 0.89, June 1996, through 0.96, May 1997, are
  46 Copyright (c) 1996, 1997 Andreas Dilger
  47 Distributed according to the same disclaimer and license as libpng-0.88,
  48 with the following individuals added to the list of Contributing Authors:
  49
  50    John Bowler
  51    Kevin Bracey
  52    Sam Bushell
  53    Magnus Holmgren
  54    Greg Roelofs
  55    Tom Tanner
  56
  57 libpng versions 0.5, May 1995, through 0.88, January 1996, are
  58 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  59
  60 For the purposes of this copyright and license, "Contributing Authors"
  61 is defined as the following set of individuals:
  62
  63    Andreas Dilger
  64    Dave Martindale
  65    Guy Eric Schalnat
  66    Paul Schmidt
  67    Tim Wegner
  68
  69 The PNG Reference Library is supplied "AS IS".  The Contributing Authors
  70 and Group 42, Inc. disclaim all warranties, expressed or implied,
  71 including, without limitation, the warranties of merchantability and of
  72 fitness for any purpose.  The Contributing Authors and Group 42, Inc.
  73 assume no liability for direct, indirect, incidental, special, exemplary,
  74 or consequential damages, which may result from the use of the PNG
  75 Reference Library, even if advised of the possibility of such damage.
  76
  77 Permission is hereby granted to use, copy, modify, and distribute this
  78 source code, or portions hereof, for any purpose, without fee, subject
  79 to the following restrictions:
  80
  81 1. The origin of this source code must not be misrepresented.
  82
  83 2. Altered versions must be plainly marked as such and must not
  84    be misrepresented as being the original source.
  85
  86 3. This Copyright notice may not be removed or altered from any
  87    source or altered source distribution.
  88
  89 The Contributing Authors and Group 42, Inc. specifically permit, without
  90 fee, and encourage the use of this source code as a component to
  91 supporting the PNG file format in commercial products.  If you use this
  92 source code in a product, acknowledgment is not required but would be
  93 appreciated.
  94
  95
  96 A "png_get_copyright" function is available, for convenient use in "about"
  97 boxes and the like:
  98
  99    printf("%s",png_get_copyright(NULL));
 100
 101 Also, the PNG logo (in PNG format, of course) is supplied in the
 102 files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
 103
 104 Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is a
 105 certification mark of the Open Source Initiative.
 106
 107 Glenn Randers-Pehrson
 108 glennrp@users.sourceforge.net
 109 September 12, 2004