operation manual

A "png_get_copyright" function is available, for
convenient use in "about"
boxes and the like:
printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is
supplied in the
files "pngbar.png.jpg" and "pngbar.jpg (88x31) and
"pngnow.png.jpg" (98x31).
Libpng is OSI Certified Open Source Software. OSI
Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
February 25, 2010
_____________________________
This software is based in part on the work of the
FreeType Team.
----------------------
The FreeType Project
LICENSE
----------------------------
2006-Jan-27
Copyright 1996-2002,
2006 by
David Turner, Robert Wilhelm, and
Werner Lemberg
Introduction
============
The FreeType Project is distributed in several
archive packages;
some of them may contain, in addition to the
FreeType font engine,
various tools and contributions which rely on, or
relate to, the
FreeType Project.
This license applies to all files found in such
packages, and
which do not fall under their own explicit
license. The license
affects thus the FreeType font engine,
the test programs,
documentation and makefiles, at the very least.
This license was inspired by the BSD,
Artistic, and IJG
(Independent JPEG Group) licenses, which all
encourage inclusion
and use of free software in commercial and
freeware products
alike. As a consequence, its main points are that:
o We don't promise that this software works.
However, we will be
interested in any kind of bug reports. (`as is'
distribution)
o You can use this software for whatever you
want, in parts or
full form, without having to pay us. (`royalty-
free' usage)
o You may not pretend that you wrote this
software. If you use
it, or only parts of it, in a program, you
must acknowledge
somewhere in your documentation that
you have used the
FreeType code. (`credits')
We specifically permit and encourage the
inclusion of this
software, with or without modifications, in
commercial products.
We disclaim all warranties covering The
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