1 2LEGAL ISSUES 3============ 4 5In plain English: 6 71. We don't promise that this software works. (But if you find any bugs, 8 please let us know!) 92. You can use this software for whatever you want. You don't have to pay us. 103. You may not pretend that you wrote this software. If you use it in a 11 program, you must acknowledge somewhere in your documentation that 12 you've used the IJG code. 13 14In legalese: 15 16The authors make NO WARRANTY or representation, either express or implied, 17with respect to this software, its quality, accuracy, merchantability, or 18fitness for a particular purpose. This software is provided "AS IS", and you, 19its user, assume the entire risk as to its quality and accuracy. 20 21This software is copyright (C) 1991-2010, Thomas G. Lane, Guido Vollbeding. 22All Rights Reserved except as specified below. 23 24Permission is hereby granted to use, copy, modify, and distribute this 25software (or portions thereof) for any purpose, without fee, subject to these 26conditions: 27(1) If any part of the source code for this software is distributed, then this 28README file must be included, with this copyright and no-warranty notice 29unaltered; and any additions, deletions, or changes to the original files 30must be clearly indicated in accompanying documentation. 31(2) If only executable code is distributed, then the accompanying 32documentation must state that "this software is based in part on the work of 33the Independent JPEG Group". 34(3) Permission for use of this software is granted only if the user accepts 35full responsibility for any undesirable consequences; the authors accept 36NO LIABILITY for damages of any kind. 37 38These conditions apply to any software derived from or based on the IJG code, 39not just to the unmodified library. If you use our work, you ought to 40acknowledge us. 41 42Permission is NOT granted for the use of any IJG author's name or company name 43in advertising or publicity relating to this software or products derived from 44it. This software may be referred to only as "the Independent JPEG Group's 45software". 46 47We specifically permit and encourage the use of this software as the basis of 48commercial products, provided that all warranty or liability claims are 49assumed by the product vendor. 50 51 52ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, 53sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA. 54ansi2knr.c is NOT covered by the above copyright and conditions, but instead 55by the usual distribution terms of the Free Software Foundation; principally, 56that you must include source code if you redistribute it. (See the file 57ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part 58of any program generated from the IJG code, this does not limit you more than 59the foregoing paragraphs do. 60 61The Unix configuration script "configure" was produced with GNU Autoconf. 62It is copyright by the Free Software Foundation but is freely distributable. 63The same holds for its supporting scripts (config.guess, config.sub, 64ltmain.sh). Another support script, install-sh, is copyright by X Consortium 65but is also freely distributable. 66 67The IJG distribution formerly included code to read and write GIF files. 68To avoid entanglement with the Unisys LZW patent, GIF reading support has 69been removed altogether, and the GIF writer has been simplified to produce 70"uncompressed GIFs". This technique does not use the LZW algorithm; the 71resulting GIF files are larger than usual, but are readable by all standard 72GIF decoders. 73 74We are required to state that 75 "The Graphics Interchange Format(c) is the Copyright property of 76 CompuServe Incorporated. GIF(sm) is a Service Mark property of 77 CompuServe Incorporated." 78 79