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