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 1.2.6, August 15, 2004, through 1.2.32, September 18, 2008, are

    12 Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are

    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 at users.sourceforge.net

   109 September 18, 2008