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LES LICENCES DU LIBRE (extrait de Wikipedia Commons)
How to comply with the licenses
The sections below are summaries of the licenses, and how to comply.
If a work is published under a single license, all of the terms in that license must be followed. If a work is multi-licensed (that is, released under more than one license), re-users may choose which license's terms they wish to follow. Except for materials believed to be in the public domain, a link to the full text of the license(s) is included on the image description page. Some licenses also have a summary available.
Please read the full licenses for legal details. Neither the Wikimedia Foundation nor the creators of material on Wikimedia sites provide legal advice. If you need information about how a license applies to your particular situation, you should contact a suitable legal professional in your jurisdiction.
[edit] Public domain
Content marked as public domain (or local equivalent, e.g. "may be used for any purpose") is material believed to be out of copyright, either because of expiration of the original copyright, or because the material has been explicitly released into the public domain by its creator(s). Note that moral rights and other restrictions may still apply in some countries for some uses.
[edit] GNU licenses
[edit] GNU Free Documentation License
For simple redistribution, include the version you were given access to and its complete history with attribution, and include the GFDL (linked on the same website or reprinted in print).
Re-users are free to make derivative works and copy, distribute, display, and perform the work, even commercially. To comply, (a) release your version under the GFDL, (b) credit at least the five most substantial authors or content creators and (c) include a complete copy of the GFDL. In the case of derivative works you must also include the complete history section.
How you determine which five authors are considered to be substantial for the purpose of the GFDL is not defined in a legal sense. We suggest using one consistent method such as edit count, word count, hours contributed to the content, or something of a similar nature.
Any derivative works must stay under the GFDL.
When using a photo placed under the GFDL licence as part of a larger work, the larger work must also be released under GFDL for usage to be within the license terms. (We asked the Free Software Foundation, the creators of the license, for clarification of how much of e.g. a book counts as the "larger work" in these terms; they responded that no synopsis can substitute for what the text of the license says, and if in doubt the reuser should seek a proper legal opinion.)
[edit] GNU GPL and LGPL
The GNU General Public License (GPL) and Lesser General Public License (LGPL) are computer software licenses and are not usually used for text or media. However, some content on Commons (e.g. icons or screenshots from computer programs) is under the GPL or LGPL. See GPL.
For simple redistribution of such material, including altered versions, (a) release your version under the same license (b) supply the source version, i.e. something as editable as what you started with (e.g. image file, GIMP .xcf file, etc.).
Note that the GNU General Public License (GPL) and the GNU Free Document License (GFDL) are not compatible with each other. That means that content licensed under the GFDL as well as content licensed under the GPL can't be used together simultaneously in the same "work" — e.g. GPL computer program source embedded in GFDL explicatory text. However, a GPL image in a GFDL text page is usually regarded as an aggregation of two works rather than a single work.
[edit] Creative Commons
Most Creative Commons licenses are not free content licenses and will not be found as the sole allowable licence on Wikimedia Commons. The following are allowed and will be found here:
In the Creative Commons Attribution license (CC-BY), re-users are free to make derivative works and copy, distribute, display, and perform the work, even commercially.
You must attribute the work to the author(s), and when re-using the work or distributing it, you must mention the license terms or a link to them. You may choose whether to make future modified versions available under CC-BY.
In the Creative Commons Share Alike license (CC-SA), re-users are free to make derivative works and copy, distribute, display, and perform the work, even commercially.
When re-using the work or distributing it, you must mention the license terms or a link to them. You must make your version available under CC-SA.
[edit] CC-BY-SA
In the Creative Commons Attribution and Share Alike license (CC-BY-SA), re-users are free to make derivative works and copy, distribute, display, and perform the work, even commercially.
When re-using the work or distributing it, you must attribute the work to the author(s) and you must mention the license terms or a link to them. You must make your version available under CC-BY-SA.
[edit] Other free content licenses
See Commons:Copyright tags#Copyleft Attitude Licenses and Commons:Copyright tags#Other free tags. |
