This copy of the libpng notices is provided for your convenience. In case of any discrepancy between this
         copy and the notices in the file png.h that is included in the libpng distribution, the latter shall
         prevail.
      COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
      If you modify libpng you may insert additional notices immediately following this sentence.
      This code is released under the libpng license.
      libpng versions 1.2.6, August 15, 2004, through 1.4.5, December 9, 2010, are Copyright (c) 2004,
         2006-2010 Glenn Randers-Pehrson, and are distributed according to the same disclaimer and license as
         libpng-1.2.5 with the following individual added to the list of Contributing Authors
      Cosmin Truta
      libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
        Copyright (c) 2000-2002 Glenn Randers-Pehrson, 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
        Gilles Vollant
      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.
      libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
        Copyright (c) 1998, 1999 Glenn Randers-Pehrson, 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 Digger
        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
      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:
      .$d9VD
          The origin of this source code must not be misrepresented.
        ~bo'?L
          Altered versions must be plainly marked as such and must not be misrepresented as being the
             original source.
        NdwcVv!Z9$P:{5
          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.
      A "png_get_copyright" function is available, for convenient use in "about" boxes and the like:
      printf("%s",png_get_copyright(NULL));
      Also, the PNG logo (in PNG format, of course) is supplied in the files "pngbar.png" and "pngbar.jpg
         (88x31) and "pngnow.png" (98x31).
      Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a certification mark of the
         Open Source Initiative.
      Glenn Randers-Pehrson
        glennrp at users.sourceforge.net
        December 9, 2010