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Table Of Contents
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ABBYY® FineReader PDF Users Guide
config.sub, ltconfig, ltmain.sh). Another support script, install-sh, is copyright by M.I.T. but is also freely
distributable.
It appears that the arithmetic coding option of the JPEG spec is covered by patents owned by IBM,
AT&T, and Mitsubishi. Hence arithmetic coding cannot legally be used without obtaining one or more
licenses. For this reason, support for arithmetic coding has been removed from the free JPEG software.
(Since arithmetic coding provides only a marginal gain over the unpatented Huffman mode, it is
unlikely that very many implementations will support it.) So far as we are aware, there are no patent
restrictions on the remaining code.
The IJG distribution formerly included code to read and write GIF files. To avoid entanglement with the
Unisys LZW patent, GIF reading support has been removed altogether, and the GIF writer has been
simplified to produce "uncompressed GIFs". This technique does not use the LZW algorithm; the
resulting GIF files are larger than usual, but are readable by all standard GIF decoders.
We are required to state that
"The Graphics Interchange Format(c) is the Copyright property of CompuServe Incorporated. GIF(sm) is
a Service Mark property of CompuServe Incorporated."󰾬
j peg.v8d
This software is copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. All Rights Reserved
except as specified below.
ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, sole proprietor of its
copyright holder, Aladdin Enterprises of Menlo Park
LEGAL ISSUES
============
In plain English:
1. We don't promise that this software works. (But if you find any bugs, please let us know!)
2. You can use this software for whatever you want. You don't have to pay us.
3. You may not pretend that you wrote this software. If you use it in a program, you must
acknowledge somewhere in your documentation that you've used the IJG code.
In legalese:
The authors make NO WARRANTY or representation, either express or implied, with respect to this
software, its quality, accuracy, merchantability, or fitness for a particular purpose. This software is
provided "AS IS", and you,