Qt 5.13 | Qt WebEngine | libpng

Qt 5.13.2 Reference Documentation

# libpng

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      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.

      Using custom versions of pnglibconf.h and pngprefix.h for Chrome.

      This code is released under the libpng license.

      libpng versions 1.0.7, July 1, 2000 through 1.6.34, September 29, 2017 are
      Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
      derived from libpng-1.0.6, 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
         Mans Rullgard
         Cosmin Truta
         Gilles Vollant
         James Yu
         Mandar Sahastrabuddhe
         Google Inc.
         Vadim Barkov

      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.

      Some files in the "contrib" directory and some configure-generated
      files that are distributed with libpng have other copyright owners and
      are released under other open source licenses.

      libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
      Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
      libpng-0.96, 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 Dilger, are derived from libpng-0.88,
      and are 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

      Some files in the "scripts" directory have other copyright owners
      but are released under this license.

      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:

        1. The origin of this source code must not be misrepresented.

        2. Altered versions must be plainly marked as such and must not
           be misrepresented as being the original source.

        3. 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.

      END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.

      TRADEMARK:

      The name "libpng" has not been registered by the Copyright owner
      as a trademark in any jurisdiction.  However, because libpng has
      been distributed and maintained world-wide, continually since 1995,
      the Copyright owner claims "common-law trademark protection" in any
      jurisdiction where common-law trademark is recognized.

      OSI CERTIFICATION:

      Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is
      a certification mark of the Open Source Initiative. OSI has not addressed
      the additional disclaimers inserted at version 1.0.7.

      EXPORT CONTROL:

      The Copyright owner believes that the Export Control Classification
      Number (ECCN) for libpng is EAR99, which means not subject to export
      controls or International Traffic in Arms Regulations (ITAR) because
      it is open source, publicly available software, that does not contain
      any encryption software.  See the EAR, paragraphs 734.3(b)(3) and
      734.7(b).

      Glenn Randers-Pehrson
      glennrp at users.sourceforge.net
      September 29, 2017