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This page is a translated version of a page Commons:Copyright tags/GNU licenses and the translation is 5% complete. Changes to the translation template, respectively the source language can be submitted through Commons:Copyright tags/GNU licenses and have to be approved by a translation administrator.

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The GNU Free Documentation License (GNU FDL or simply GFDL) is a license for free documentation. The GNU General Public License (GNU GPL or GPL) is a free software license, which guarantees end users the freedom to run, study, share and modify the software. GFDL and GPL are copyleft licenses, which means that derivative work can only be distributed under the same license terms. Works licensed under the GNU family of licenses may be uploaded to Wikimedia.

The GFDL is rather impractical for images and short texts because it requires the full text of the GFDL to be published along with the image. This is prohibitive for print media: in order to use a single image in a newspaper, a full page containing the GFDL would have to be printed. To resolve this, please dual-license your work under GFDL and an equivalent Creative Commons license like CC-by-sa-3.0. This helps to make your work usable not only freely, but also easily.

GFDL license tags

See Category:GFDL license tags for a complete list of over 80 GFDL license tags. These include {{tl|GFDL-user-xy}} tags for most Wikipedia language versions, such as {{GFDL-user-bpy}} for users of the Bishnupriya Wikipedia.

  • {{GFDL}} – - GNU 自由文档许可证 (所有版本)。
  • {{GFDL-1.2}} – 以GNU 自由文档许可证 (1.2版本) 发布的作品。
  • {{GFDL-self}} – 由作者自己发布的GNU 自由文档许可证。
  • {{GFDL-en}} – f来自英文维基百科中GFDL作品,其GFDL条文与Commons略有不同。
  • {{GFDL-user-w|projectcode|projectname|username}} – for works released under the terms of the GNU Free Documentation License by their creators when the creators are other Wikipedia users. Note: The variable projectcode is the language name of the creator's local Wikipedia (e.g. "de" for the German Wikipedia, and "ja" for the Japanese); It may also contain the project name for non-Wikipedia projects (i.e. "de:wiktionary" for the German Wiktionary). The variable projectname is the human readable project name (e.g. "French Wikipedia", "German Wiktionary", etc.). The variable username is the creator's log-in name at that project.

GPL license tags

See Category:GPL license tags for all GPL templates. There are specific versions such as tags for screenshots from a given website. Common GPL tags are listed below.

!* {{GPL}} – GNU 通用公共许可证。

  • {{LGPL}} – GNU 较宽松的公共许可证。
  • {{LGPLv3}} – GNU Lesser General Public License, version 3 or later. Note: do not use this as the only license for your work if you can avoid it. The LGPL is intended for computer programs, not for media files.
  • {{AGPL}} – The Affero General Public License. Note: do not use this as the only license for your work if you can avoid it. The AGPL is intended for computer programs, not for media files.

Other GNU license tags

There are over 250 custom GFDL license tags, many of which are listed at Category:Custom GFDL license tags. Typically they are used for the works of individuals, but there are examples of GFDL tags for works published by organizations, as shown below.

  • {{Picswiss}} – 从 下载的图片。