MNG Documentation
The specifications for MNG (Multiple-image Network Graphics),
MNG-LC (low-complexity subset of MNG), MNG-VLC (very low-complexity subset),
and JNG (JPEG Network Graphics, also a subset of MNG) were written
by Glenn Randers-Pehrson, with
contributions from various others. As of version 0.995, the spec was
officially voted on and promoted to 1.0 status (effective 11 January
2001); it is considered to be a solid, stable specification. (See the
MNG applications page for a list of supporting
viewers, browsers, editors and programming libraries.)
The MNG spec itself is considered the definitive version; MNG-LC, MNG-VLC
and JNG are all derived from the main document and are provided for the
convenience of implementors. One possible implementation path to the full
specification would be to start with MNG-VLC (which is defined not to include
JNG support), then upgrade to MNG-LC, then add JNG support, and finally fill
out the remaining features in the full MNG specification. Note that MNG-VLC
is not necessarily very interesting to content-creators, but it does allow
for transparency support.
Also note that, in addition to the technical documentation below, MNG is
described in Chapter 12 of PNG: The Definitive Guide. If the links below don't work,
check here or
here for a more recent
copy of the spec. (At this time, there is no separate extensions document
comparable to that for PNG.)
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MNG specification, version 1.0 ("Draft 80")
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MNG-LC specification, version 1.0 (extract from MNG spec)
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MNG-VLC specification, version 1.0 (extract from MNG spec)
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JNG specification, version 1.0 (extract from MNG spec)
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The ISO 8859-1 character set (also known as "Latin-1") is used by both PNG
and MNG.
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ISO 8859-1 character set
[ISO 8859-1 character set]
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PNG image (721 x 785; 8179 bytes):
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PNG documentation has
its own web page.
Here are some other MNG-related resources at this site:
[primary site hosted by SourceForge]
Last modified 11 January 2015.
Copyright © 1998-2015 Greg Roelofs.
![[ISO 8859-1 character set]](/index.cgi/speech/http://www.libpng.org/pub/png/img_png/iso_8859-1.png){kind=link}
