that very many implementations will support it.) So far as we are aware, there are no patent restrictions on the remaining code.
The IJG distribution formerly included code to read and write GIF files. To avoid entanglement with the Unisys LZW patent, GIF reading support has been removed altogether, and the GIF writer has been simplified to produce "uncompressed GIFs". This technique does not use the LZW algorithm; the resulting GIF files are larger than usual, but are readable by all standard GIF decoders.
We are required to state that
"The Graphics Interchange Format (c) is the Copyright property of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated."
libpng
This projector product includes the open source software program "libpng" which applies the terms and conditions provided by owner of the copyright to the "libpng".
The "libpng" are WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
List of libpng programs
License terms of conditions of each program which are provided by owner of the copyright to the "libpng" are as follows.
For conditions of distribution and use, see copyright notice in png.h Copyright (c)
This copy of the libpng notices is provided for your convenience. In case of any discrepancy between this copy and the notices in the file png.h that is included in the libpng distribution, the latter shall prevail.
COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following this sentence.
This code is released under the libpng license.
libpng version 1.2.6, August 15, 2004, through 1.2.49, March 29, 2012, are Copyright (c) 2004, 2006- 2009 Glenn
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are Copyright (c)
