CopyLeft License : Every Open Source License

The LaTeX Project Public License =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- LPPL Version 1.3c 2008-05-04 Copyright 1999 2002-2008 LaTeX3 Project Everyone is allowed to distribute verbatim copies of this license document, but modification of it is not allowed. PREAMBLE ======== The LaTeX Project Public License (LPPL) is the primary license under which the LaTeX kernel and the base LaTeX packages are distributed. You may use this license for any work of which you hold the copyright and which you wish to distribute. This license may be particularly suitable if your work is TeX-related (such as a LaTeX package), but it is written in such a way that you can use it even if your work is unrelated to TeX. The section `WHETHER AND...

THE Q PUBLIC LICENSE version 1.0 Copyright (C) 1999-2000 Trolltech AS, Norway. Everyone is permitted to copy and distribute this license document. The intent of this license is to establish freedom to share and change the software regulated by this license under the open source model. This license applies to any software containing a notice placed by the copyright holder saying that it may be distributed under the terms of the Q Public License version 1.0. Such software is herein referred to as the Software. This license covers modification and distribution of the Software, use of third-party application programs based on the Software, and development of free software which uses the Software. Granted Rights ...

GNU GENERAL PUBLIC LICENSE Version 1, February 1989 Copyright (C) 1989 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The license agreements of most software companies try to keep users at the mercy of those companies. By contrast, our General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. The General Public License applies to the Free Software Foundation's software and to any other program whose authors commit to using it. You can use it for your programs, too. ...

Copyright (c) 1995, 1996 Xerox Corporation. All Rights Reserved. Use and copying of this software and preparation of derivative works based upon this software are permitted. Any copy of this software or of any derivative work must include the above copyright notice of Xerox Corporation, this paragraph and the one after it. Any distribution of this software or derivative works must comply with all applicable United States export control laws. This software is made available AS IS, and XEROX CORPORATION DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND NOTWITHSTANDING ANY OTHER PROVISION CONTAINED HEREIN, ANY LIABILITY FOR DAMAGES...

BitTorrent Open Source License Version 1.1 This BitTorrent Open Source License (the "License") applies to the BitTorrent client and related software products as well as any updates or maintenance releases of that software ("BitTorrent Products") that are distributed by BitTorrent, Inc. ("Licensor"). Any BitTorrent Product licensed pursuant to this License is a Licensed Product. Licensed Product, in its entirety, is protected by U.S. copyright law. This License identifies the terms under which you may use, copy, distribute or modify Licensed Product. Preamble This Preamble is intended to describe, in plain English, the nature and scope of this License. However, this Preamble is not a part of this license. The legal effect of th...