WebGif Contributors
The WebGif core library was originally written for UNIX and has had MANY people contributing to it, Tom Boutell did the original version and his excellent gd library, but this itself was based on XPaint and other programs. The full list of contributors is: David Rowley, Marcel Wijkstra, Jef Poskanzer, Spencer W. Thomas, Jim McKie, Steve Davies, Ken Turkowski, James A. Woods, Joe Orost, David Koblas and Tom Boutell. My thanks go to all of these people for spending time to create such a useful program and libraries. FreeWare still lives on strong. Long live GNU!.
The three copyright messages people wished to include are reproduced here:
/* Code drawn from ppmtogif.c, from the pbmplus package
**
** 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.
*/
/***************************************************************************
*
* GIFCOMPR.C - GIF Image compression routines
*
* Lempel-Ziv compression based on 'compress'. GIF modifications by
* David Rowley (mgardi@watdcsu.waterloo.edu)
*
***************************************************************************/
/* +-------------------------------------------------------------------+ */
/* | Copyright 1990, 1991, 1993, David Koblas. (koblas@netcom.com) | */
/* | 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. | */
/* +-------------------------------------------------------------------+ */
ian@paradise1.compulink.co.uk - Ian Jeffray