gd 1.2

A graphics library for fast GIF creation

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Credits and license terms

gd 1.2 is copyright 1994, 1995, Quest Protein Database Center, Cold Spring Harbor Labs. Permission granted to copy and distribute this work provided that this notice remains intact. Credit for the library must be given to the Quest Protein Database Center, Cold Spring Harbor Labs, in all derived works. This does not affect your ownership of the derived work itself, and the intent is to assure proper credit for Quest, not to interfere with your use of gd. If you have questions, ask. ("Derived works" includes all programs that utilize the library. Credit must be given in user-visible documentation.)

If you wish to release modifications to gd, please clear them first by sending email to; if this is not done, any modified version of the gd library must be clearly labeled as such.

The Quest Protein Database Center is funded under Grant P41-RR02188 by the National Institutes of Health.

Written by Thomas Boutell, 2/94 - 7/95.

The GIF compression code is based on that found in the pbmplus utilities, which in turn is based on GIFENCOD by David Rowley. See the notice below:

** Based on GIFENCOD by David Rowley .A
** Lempel-Zim compression based on "compress".
** Modified by Marcel Wijkstra 
** Copyright (C) 1989 by Jef Poskanzer.
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation.  This software is provided "as is" without express or
** implied warranty.
** The Graphics Interchange Format(c) is the Copyright property of
** CompuServe Incorporated.  GIF(sm) is a Service Mark property of
** CompuServe Incorporated.

The GIF decompression is based on that found in the pbmplus utilities, which in turn is based on GIFDECOD by David Koblas. See the notice below:

/* +-------------------------------------------------------------------+ */
/* | Copyright 1990, 1991, 199