en	[[!meta title="License and source code distribution"]]
fa	[[!meta title="گواهی"]]

en	Tails is [Free Software](https://www.gnu.org/philosophy/free-sw.html): you can download, use, and share it with no restrictions.

en	The Tails source code is released under the GNU/GPL (version 3 or above) and is Copyright (C) Tails developers <tails@boum.org>. Any exception to this rule is documented either below or in the affected source file.

en	However, Tails includes non-free firmware in order to work on as much hardware as possible.
fa	با این حال، تیلز برای این‌که روی سخت‌افزارهای بیشتری کارایی داشته باشد، دارای سفت‌افزارهای غیرآزاد است.

en	Source code

en	Most of the software included in Tails is taken directly from upstream Debian packages and is neither modified nor recompiled by Tails.

en	The source code of software that is specific to Tails is available in [[our Git repositories|contribute/git]].

en	The source code of the Debian packages included in Tails is available in the [APT snapshot](https://tagged.snapshots.deb.tails.boum.org/) that we created for that version of Tails.

en	The [[!tails_gitweb config/chroot_local-includes/usr/share/tails/chroot-browsers/unsafe-browser/extensions/red-2.0-an+fx.xpi desc="red theme"]] used by Tails' _Unsafe Browser_ was downloaded from Mozilla add-ons website (<https://addons.mozilla.org/en-US/firefox/addon/simplyred/>):

en	license: Creative Commons Attribution 3.0

en	author: [Firefox user 14030863](https://addons.mozilla.org/en-US/firefox/user/14030863/)

en	Website
fa	تارنما

en	This website uses several images with distinct copyright, licenses, trademarks and distribution terms:
fa	این تارنما از عکس‌های زیادی استفاده می‌کند که داری حق نشر، پروانه، نشان‌ تجاری و شرایط توزیع گوناگونی هستند:

en	The Tails logo is based on [[USB|http://thenounproject.com/term/usb/23873/]] by Ilsur Aptukov from the Noun Project.

en	- Debian logo: Copyright (c) 1999 Software in the Public Interest.

en	Onion logo: registered trademark of The Tor Project, Inc.; the Tails project is authorized to use it under certain conditions; licensed under Creative Commons Attribution 3.0 United States License.

en	- [Forge](https://github.com/digitalbazaar/forge/), copyright Digital Bazaar, Inc.

en	The drawings on our [[Home|index]], [[About|about]], and [[Warnings|doc/about/warnings]] pages are licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright [Andrés Fernández Cordón](https://anhdres.com/) ([[source|lib/drawings.zip]] for Adobe Illustrator).

en	All the [[drawings of our personas|contribute/personas]] are licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright Thomas Verguet.

en	The [[Boot Menu animation|doc/first_steps/start/pc#animation]] is licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright [Odile Carabantes](https://studiomoare.com/) and [Enso Studio](https://www.ensostudio.tv/) ([source](https://gitlab.tails.boum.org/tails/ux/-/raw/master/boot%20menu%20key/animation.rar) for Adobe Illustrator and Adobe Premiere).

en	- Icons from [[The Noun Project|http://thenounproject.com/]]:

en	[[Announcement|http://thenounproject.com/term/announcement/1186/]]: Creative Commons - Attribution, by Olivier Guin.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Code|http://thenounproject.com/term/code/18033/]]: Creative Commons — Attribution, by Azis.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Pen|http://thenounproject.com/term/pen/18907/]]: Creative Commons — Attribution, by factor[e] design initiative.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Loan|http://thenounproject.com/term/loan/19538/]]: Public Domain, by Rohith M S.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[User|http://thenounproject.com/term/user/419/]]: Creative Commons — Attribution, by Edward Boatman.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Translation|http://thenounproject.com/term/translation/5735/]]: Creative Commons — Attribution, by Joe Mortell.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Gears|http://thenounproject.com/term/gears/8949/]]: Creative Commons — Attribution, by Cris Dobbins.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Graphic Design|http://thenounproject.com/term/graphic_design/9198/]]: Creative Commons — Attribution, by Cornelius Danger.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Check Mark|https://thenounproject.com/term/check/4489/]]: Public Domain, by Julian Norton.

en	[[Delete|https://thenounproject.com/term/delete/49691/]]: Creative Commons — Attribution, by Kervin Markle.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Play|https://thenounproject.com/term/play/152052]]: Creative Commons — Attribution, by Zech Nelson.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Pause|https://thenounproject.com/term/pause/152046]]: Creative Commons — Attribution, by Zech Nelson.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[USB|https://thenounproject.com/term/usb/28901]]: Creative Commons — Attribution, by Wilson Joseph.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Time|https://thenounproject.com/term/time/6732]]: Creative Commons — Attribution, by Richard de Vos.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Printer|https://thenounproject.com/term/printer/146674]]: Creative Commons — Attribution, by Diego Naive.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Smart Phones|https://thenounproject.com/term/smartphone/25790]]: Creative Commons — Attribution, by Pham Thi Dieu Linh.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Laptop|https://thenounproject.com/term/laptop/6729]]: Public Domain, by Jean Yashu.

en	[[Love|https://thenounproject.com/term/love/218846/]]: Creative Commons — Attribution, by Thomas Helbig.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Survey|https://thenounproject.com/term/survey/1296072]]: Creative Commons — Attribution, by unlimicon.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Info|https://thenounproject.com/term/info/808461]]: Creative Commons — Attribution, by icongeek.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\

en	[[Command Line|https://thenounproject.com/icon/command-line-39108]]: Public Domain, by Daniel Gamage.
fa	- [[Announcement|http://thenounproject.com/term/announcement/1186/]] Creative Commons - ارجاع, توسط الیویه گویین.\