zlib License

zlib license
Author Jean-loup Gailly and Mark Adler
Version 1.2.2
Publisher Jean-loup Gailly and Mark Adler
Published 2004-10-03
DFSG compatible Yes
Free software Yes
OSI approved Yes
GPL compatible Yes
Copyleft No
Copyfree Yes[1]
Linking from code with a different license Yes

The zlib License is a permissive free software license which defines the terms under which the zlib and libpng software libraries can be distributed. It is also used by other free software packages.

The zlib License has been approved by the Free Software Foundation (FSF) as a free software licence,[2] and by the Open Source Initiative (OSI) as an open source license. It is compatible with the GNU General Public License.

Contents

Terms

The license only has the following points to be accounted for:

The license does not require source code to be made available if distributing binary code.

Text

The license terms are as follows:

Copyright (c) <''year''> <''copyright holders''>

This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:

   1. The origin of this software must not be misrepresented; you must not
   claim that you wrote the original software. If you use this software
   in a product, an acknowledgment in the product documentation would be
   appreciated but is not required.

   2. Altered source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

   3. This notice may not be removed or altered from any source
   distribution.

References

  1. ^ Certified Copyfree Licenses
  2. ^ "Various Licenses and Comments about Them". http://www.gnu.org/licenses/license-list.html#ZLib. Retrieved 2007-06-17. "License of ZLib [...] is a free software license, and compatible with the GPL." 

External links