|Easy Graphics File Converter|
The low-level graphics file conversion functions used in this software are a subset of the functions in Version 2.4 of Scott Heiman's BMGLib API for reading and saving BitMapped Graphics (BMG) on the Windows operating system. Scott Heiman writes:
BMGLib uses several open source libraries that I obtained from the Internet. ... LibJPEG is an open source JPEG file format library that is distributed by the Independent JPEG Group (IJG). LibPNG is an open source PNG file format library supported by people who wanted an alternative to GIF. Long live the rebellion! The zlib library is an open source library for file compression. It is distributed by other closely allied rebels. ... The
LibUnGIF library is Eric Raymond's response to the Unisys LZW patent.
Here are the relevant copyright notices (copied from Scott Heiman's documentation file BMGLibAPI.txt):
This DLL encapsulates the libJPEG library,
the libPNG library, and other functions.
Easy Graphics File Converter is Copyright © 2003-2011 Hermetic Systems.
Copyright © 1998, 2000, 2001, 2002 M. Scott Heiman. All Rights Reserved
libJPEG is Copyright © 1991-1998 Thomas G. Lane and is part of the Independent JPEG Group's software.
libPNG is Copyright © 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
zLib Copyright © 1995-1998 Jean-loup Gailly.
libUnGif is Copyright © 1997 Eric S. Raymond