Title: License

Credits and license terms:

> In order to resolve any possible confusion regarding the authorship of
> gd, the following copyright statement covers all of the authors who
> have required such a statement. If you are aware of any oversights in
> this copyright notice, please contact Pierre-A. Joye who will be
> pleased to correct them.
>
>    Portions copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
>    2002, 2003, 2004 by Cold Spring Harbor Laboratory. Funded under
>    Grant P41-RR02188 by the National Institutes of Health.
>
>    Portions copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
>    2004 by Boutell.Com, Inc.
>
>    Portions relating to GD2 format copyright 1999, 2000, 2001, 2002,
>    2003, 2004 Philip Warner.
>
>    Portions relating to PNG copyright 1999, 2000, 2001, 2002, 2003,
>    2004 Greg Roelofs.
>
>    Portions relating to gdttf.c copyright 1999, 2000, 2001, 2002,
>    2003, 2004 John Ellson (ellson@graphviz.org).
>
>    Portions relating to gdft.c copyright 2001, 2002, 2003, 2004 John
>    Ellson (ellson@graphviz.org).
>
>    Portions copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
>    Pierre-Alain Joye (pierre@libgd.org).
>
>    Portions relating to JPEG and to color quantization copyright
>    2000, 2001, 2002, 2003, 2004, Doug Becker and copyright (C) 1994,
>    1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Thomas
>    G. Lane. This software is based in part on the work of the
>    Independent JPEG Group. See the file README-JPEG.TXT for more
>    information.
>
>    Portions relating to GIF compression copyright 1989 by Jef
>    Poskanzer and David Rowley, with modifications for thread safety
>    by Thomas Boutell.
>
>    Portions relating to GIF decompression copyright 1990, 1991, 1993
>    by David Koblas, with modifications for thread safety by Thomas
>    Boutell.
>
>    Portions relating to WBMP copyright 2000, 2001, 2002, 2003, 2004
>    Maurice Szmurlo and Johan Van den Brande.
>
>    Portions relating to GIF animations copyright 2004 Jaakko Hyvätti
>    (jaakko.hyvatti@iki.fi)
>
> Permission has been granted to copy, distribute and modify gd in
> any context without fee, including a commercial application,
> provided that this notice is present in user-accessible supporting
> documentation.
>
> This does not affect your ownership of the derived work itself,
> and the intent is to assure proper credit for the authors of gd,
> not to interfere with your productive use of gd. If you have
> questions, ask. "Derived works" includes all programs that utilize
> the library. Credit must be given in user-accessible
> documentation.
>
> This software is provided "AS IS." The copyright holders disclaim
> all warranties, either express or implied, including but not
> limited to implied warranties of merchantability and fitness for a
> particular purpose, with respect to this code and accompanying
> documentation.
>
> Although their code does not appear in the current release, the
> authors also wish to thank Hutchison Avenue Software Corporation
> for their prior contributions.
