Zlib-libpng license

The zlib/libpng license is a software license that applies to zlib, libpng and other non-related 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 GPL.

The license has only three simple 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.

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