చి (బాటు చేసిన మార్పు: ఆంగ్ల నేంస్పేసు పేర్లు తెలుగులోకి మార్పు)
The license [[Wikipedia]] uses grants free access to our content in the same sense as [[free software]] is licensed freely. This principle is known as '''[[copyleft]]'''. That is to say, Wikipedia content can be copied, modified, and redistributed ''so long as'' the new version grants the same freedoms to others and acknowledges the authors of the Wikipedia article used (a direct link back to the article satisfies our author credit requirement). Wikipedia articles therefore will remain free forever and can be used by anybody subject to certain restrictions, most of which serve to ensure that freedom.
To fulfill the above goals, the text contained in Wikipedia is copyrighted (automatically under the [[Berne Convention for the Protection of Literary and Artistic Works|Berne Convention]]) by Wikipedia contributors and licensed to the public under the '''[[GNU Free Documentation License]]''' (GFDL). The full text of this license is at [[
:'''Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the [[Free Software Foundation]]; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts.'''
:'''A copy of the license is included in the section entitled "[[
:'''Content on Wikipedia is covered by [[
The English text of the GFDL is the only legally binding document; what follows is our interpretation of the GFDL: the rights and obligations of users and contributors.
<font size="+1">IMPORTANT: If you want to reuse content from Wikipedia, first read the [[#Reusers'_rights_and_obligations|Reusers' rights and obligations]] section. You should then read the [[
== Contributors' rights and obligations ==
=== Using copyrighted work from others ===
All works are copyrighted unless they either fall into the [[
Never use materials that infringe the copyrights of others. This could create legal liabilities and seriously hurt the project. If in doubt, write it yourself.
=== Linking to copyrighted works ===
Since most recently-created works are copyrighted, almost any Wikipedia article which [[
If you know that an external Web site is carrying a work in violation of the creator's copyright, do not link to that copy of the work. Knowingly and intentionally directing others to a site that violates copyright has been considered a form of [[contributory infringement]] in the United States ([http://www.law.uh.edu/faculty/cjoyce/copyright/release10/IntRes.html Intellectual Reserve v. Utah Lighthouse Ministry]). Linking to a page that illegally distributes someone else's work sheds a bad light on Wikipedia and its editors.
=== If you find a copyright infringement ===
If you suspect a copyright infringement, you should at the very least bring up the issue on that page's [[
Some cases will be false alarms. For example, if the contributor was in fact the author of the text that is published elsewhere under different terms, that does not affect their right to post it here under the GFDL. Also, sometimes you will find text elsewhere on the Web that was copied from Wikipedia. In both of these cases, it is a good idea to make a note in the talk page to discourage such false alarms in the future.
If some of the content of a page really is an infringement, then the infringing content should be removed, and a note to that effect should be made on the talk page, along with the original source. If the author's permission is obtained later, the text can be restored.
If ''all'' of the content of a page is a suspected copyright infringement, then the page should be listed on [[
In extreme cases of contributors continuing to post copyrighted material after appropriate warnings, such users may be blocked from editing to protect the project.
=== Image guidelines ===
Images and photographs, like written works, are subject to [[copyright]]. Someone holds the copyright unless they have been explicitly placed in the [[
Image description pages must be tagged with a special tag to indicate the legal status of the images, as described at [[
==== U.S. government photographs ====
Under Wikipedia's current copyright conditions, and with the current facilities of the MediaWiki software, it is only possible to include in Wikipedia external GFDL materials that contain invariant sections or cover texts, if all of the following apply,
# You are the copyright holder of these external GFDL materials (or: you have the explicit, i.e. written, permission of the copyright holder to do what follows);
# The length and nature of these invariant sections and cover texts does not exceed what can be placed in an [[
# You are satisfied that these invariant sections and cover texts are not listed elsewhere than in the "page history" of the page where these external materials are placed;
# You are satisfied that further copies of Wikipedia content are distributed under the standard GFDL application of "with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts" (in other words, for the copies derived from wikipedia, you agree that these parts of the text contributed by you will no longer be considered as "invariant sections" or "cover texts" in the GFDL sense);
If you want to use Wikipedia materials in your own books/articles/web sites
or other publications, you can do so, but you have to follow the GFDL. If you are simply duplicating the Wikipedia article, you must follow [[
If you create a derivative version by changing or adding content, this entails the following:
=== Fair use materials and special requirements ===
All original Wikipedia text is distributed under the [[GNU Free Documentation License|GFDL]]. Occasionally, Wikipedia articles may include images, sounds, or text quotes used under the U.S. Copyright law "[[
''In Wikipedia'', such "fair use" material should be identified as from an external source (on the image description page, or history page, as appropriate). This also leads to possible restrictions on the use, outside of Wikipedia, of such "fair use" content retrieved from Wikipedia: this "fair use" content does not fall under the GFDL license as such, but under the "fair use" (or similar/different) regulations in the country where the media are retrieved.
==If you are the owner of Wikipedia-hosted content being used without your permission==
If you are the owner of content that is being used on Wikipedia without your permission, then you may request the page be immediately removed from Wikipedia; see [[
== See also ==
* The [[
* Wikipedia's [[
* [[m:Wikipedia and copyright issues]]
* [[m:Avoid Copyright Paranoia]]