gif2png -- GIF to PNG graphics file conversion
The gif2png program converts files from the patent-encumbered Graphic
Interchange Format to Portable Network Graphics. It can be built
under any Unix, or under MS-DOS or Windows using djgpp, or using
Borland C. I don't know when the djgpp or Borland builds were last
Some pre-1.0.0 versions of gif2png had a bug that messed up color
conversions that followed grayscale conversions. There has also been
at least one relevant bug-fix in zlib, so if you are using gif2png (or
any other png writing program using zlib) with a version below 0.95,
you should update.
Note: Some ImageMagick 4.2.x versions (including the 4.2.2 shipped
with Red Hat 6.1) have a bug displaying grayscale PNGs that makes it
look like gif2png is broken. It's not.
This distribution also supplies web2png, a Python front end for
gif2png which automagically converts entire web hierarchies (the
graphics files themselves and references to them in web pages).
Note: this script requires Python 1.5.2.
These programs has a home site at <http://www.tuxedo.org/~esr/gif2png/>.
Look there for updates and related resources.
See NEWS for a project history and COPYING for license terms.
Eric S. Raymond