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Member "libtiff-lzw-compression-kit-1.5/README-LZW-COMPRESSION" (24 Sep 2001, 1120 Bytes) of package /linux/misc/old/libtiff-lzw-compression-kit-1.5.tar.gz:
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1 This archive will re-enable LZW compression in libtiff. N.B. That
2 Unisys's position in regards to non-licenced LZW compression is clear:
4 "Unisys has frequently been asked whether a Unisys license is required
5 in order to use LZW software obtained by downloading from the Internet
6 or from other sources. The answer is simple. In all cases, a written
7 license agreement or statement signed by an authorized Unisys
8 representative is required from Unisys for all use, sale or
9 distribution of any software (including so-called "freeware") and/or
10 hardware providing LZW conversion capability (for example, downloaded
11 software used for creating/displaying GIF images)." -- Unisys, as
12 quoted on http://burnallgifs.org.
14 Unless you are (luckily) not subject to US patent law, or have
15 purchaced a license from Unisys, you will be in violation of Unisys'
16 position when using this archive. This archive is intended for
17 authorized users only.
22 Just copy tif_lzw.c over the copy in libtiff and rebuild libtiff.
24 --Mike Welles (firstname.lastname@example.org), 3/99
25 --Frank Warmerdam (email@example.com), 10/2001