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$Id: LICENSE.CTAN 2212 2006-09-28 16:31:42Z karl $ COPYING CONDITIONS FOR CTAN SNAPSHOT: A snapshot of the Comprehensive TeX Archive Network (CTAN) holdings is taken from time to time and distributed on physical media. It may be bundled with the TeX Live system, or distributed separately. In any case, the licensing conditions of the packages in the CTAN snapshot vary widely. In particular (and in contrast to TeX Live), not all the software meets free software or open source criteria: some are available only as binaries, others have restrictions on commercial resale, and so on. Furthermore, the creators of the CTAN snapshot have explicitly received permission from some authors of software to include their material; this software is in the ctan/nonfree/ subdirectory. (The nonfree area on the CTAN servers, http://www.ctan.org/tex-archive/nonfree, contains much more software that is not included here.) This permission does not extend to any redistributors; you yourself must also contact such authors with regards to your own distribution, or refrain from including such software. Thus, when redistributing the CTAN snapshot, you must be very careful that you are not violating any license conditions. Since each situation is different, we cannot offer any general advice. To learn redistribution requirements, of course the licensing information within the packages themselves is the final authority. For aggregate information, we suggest checking the TeX Catalogue: http://www.ctan.org/tex-archive/help/Catalogue/catalogue.html (or any CTAN mirror). The Catalogue is also included in the CTAN snapshot in ctan/help/Catalogue, but the online version will have updates. You may also find the CTAN Search by License page helpful in this regard: http://tug.ctan.org/cgi-bin/searchByLicense.py If you believe any files have been included erroneously, please contact us (references are given below). If you have any questions or comments, please contact us. Thanks for your interest in TeX. CTAN maintainers mailing list: ctan@dante.de CTAN home page: http://www.ctan.org/