Licence of zlib/libpng
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The licence of zlib/libpng or the zlib licence is a free software licence which defines the terms under which zlib and libpng can be distributed. The licence is also used by other free software packages.
It has been approved by the Free Software Foundation (FSF) as a free software license, and by the Open Source Initiative (OSI) as an open source license. It is compatible with the GNU General Public License.
The license only has the following points to be accounted for:
- Software is used on 'as-is' basis. Authors are not liable for any damages arising from its use.
- The distribution of a modified version of the software is subject to the following restrictions:
- You must not claim that you wrote the original software,
- Altered source versions must not be misrepresented as being the original software, and
- The license notice must not be removed from source distributions.
Note that the license does not require source code distributions to be provided.