Guy Eric Schalnat
The PNG Reference Library is supplied "AS IS". The Contributing Authors and Group 42, Inc. disclaim all
warranties, expressed or implied, including, without limitation, the warranties of merchantability and of fitness
for any purpose. The Contributing Authors and Group 42, Inc. assume no liability for direct, indirect, incidental,
special, exemplary, or consequential damages, which may result from the use of the PNG Reference Library,
even if advised of the possibility of such damage.
Permission is hereby granted to use, copy, modify, and distribute this source code, or portions hereof, for any
purpose, without fee, subject to the following restrictions:
1. The origin of this source code must not be misrepresented.
2. Altered versions must be plainly marked as such and must not be misrepresented as being the original source.
3. This Copyright notice may not be removed or altered from any source or altered source distribution.
The Contributing Authors and Group 42, Inc. specifically permit, without fee, and encourage the use of this
source code as a component to supporting the PNG file format in commercial products. If you use this source
code in a product, acknowledgment is not required but would be appreciated.
A "png_get_copyright" function is available, for convenient use in "about" boxes and the like:
Also, the PNG logo (in PNG format, of course) is supplied in the files "pngbar.png" and "pngbar.jpg (88x31) and
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a certification mark of the Open
glennrp at users.sourceforge.net
December 3, 2009
All of the deliverable code in SQLite has been dedicated to the HYPERLINK "http://en.wikipedia.org/wiki/
Public_Domain"public domain by the authors. All code authors, and representatives of the companies they
work for, have signed affidavits dedicating their contributions to the public domain and originals of those signed
affidavits are stored in a firesafe at the main offices of HYPERLINK "http://www.hwaci.com"Hwaci. Anyone is
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or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.
The previous paragraph applies to the deliverable code in SQLite - those parts of the SQLite library that you
actually bundle and ship with a larger application. Portions of the documentation and some code used as part
of the build process might fall under other licenses. The details here are unclear. We do not worry about the
licensing of the documentation and build code so much because none of these things are part of the core
deliverable SQLite library.
All of the deliverable code in SQLite has been written from scratch. No code has been taken from other projects
or from the open internet. Every line of code can be traced back to its original author, and all of those authors have
public domain dedications on file. So the SQLite code base is clean and is uncontaminated with licensed code from