History

This program was written by a German university student named Alexander
Lehmann <alex@hal.rhein-main.de> in 1995. He evolved it to a beta
version 0.6 and then dropped off the face of the net.  In Fall 1999,
after the program had been stable and in production use for four years, 
Greg Roelofs <newt@pobox.com> added some minor features and released 0.7.

A short time later, with Greg's consent, I took over maintaining
gif2png in order to give it a proper manual page and release
packaging. Alexander Lehmann is OK with this and has even approved
a change in the license terms to use the libpng/zlib license.

Change log entries after 2.4.7 are in the RPM spec file.

2.4.7:
	* Fixed man page paths in RPM spec.
	* Fixed a bug in manual-page rendering.

2.4.6:
	* Document masters converted to DocBook.

2.4.5:
	* Work around an apparent automake bug that produced bad SRPMs.
	* Man page typo fix.

2.4.4:
	* Glen Randers-Pehrson's configure.in tweaks to avoid testing
	  for a deprecated function.

2.4.3:
	* Typo fix in the web2png script.
	* Document -f, restore -1 for backwards compatibility.

2.4.2:
	* Mac porting fixes from Paul Matzke <pmatzke@macline.com>.

2.4.1:
	* Update to use the post-0.8.9 initialization code, so it
	  will play nice with shared libraries.

2.4.0:
	* Added -t option to enable conversion of transparent images.

2.3.3:
	* Handle malformed (zero-length) GIF comments without coredumping.
	  This was Debian bug #59830.

2.3.2:
	* Bug fix for aspect-ratio handling (Glenn Randers-Pehrson
	  <glennrp@home.com>).

2.3.1:
	* No more direct assignments of the PNG info structure members;
	it's all done through the API now.

2.3.0:
	* Cosmetic cleanup for stable release.

2.2.5:
	* Deal gracefully with files that have leading numerics in the name.
	* Bernhard Reiter's fix to use relative pathnames.

2.2.4:
	* On -O, set maximum compression when writing the conversion.
	* New -g option to write a gamma chunk by Glenn Randers-Pehrson.
	* Configure option --with-png to set libpng header/library location.

2.2.3:
	* Corrected the warning in the README and on the web page.

2.2.2:
	* README: Added a warning about malfunctions under RH 6.1.
	* gif2png.c: Added some explanatory comments.
	* web2png: Added Python version check.

2.2.1:
	* License changed (with Alexander Lehman's and David Koblas's 
        permission) to the libpng/zlib license.
	* Option-processing cleanup.

2.2.0:
	* Simpler DJGPP machinery if you have long file names.
	* discard optional preceding # on gif2png -b option value.
	* Fix to RCS machinery in web2png.

2.1.3:
	* Added -b option to gif2png for painting transparent pixels 
	with a specified background color.

2.1.2:
	* 64-bit cleanliness patch for gif2png from Jesse Perry.

2.1.1:
	* Fixed an option-processing bug in web2png.

2.1.0:
	* Added -a option to web2png.
	* Fix references in .inc/.css/.js files.

2.0.2:
	* John Hascall's patch for filtermode.

2.0.1:
	* gif2png man page now warns about potential browser problems.
	* Use env in web2png's #! for portability.

2.0.0:
	* Greg Roelofs sent a couple of minor fixes.  This version
	is ready for Burn All GIFs Day.

1.2.2:
	* Fixed a bug in configure that was preventing it from finding
	the png library properly.

1.2.1:
	* Fixed a brown-paper-bag bug -- web2png ignored directory
	arguments.

1.2.0:
	* Added capability to web2png to handle BACKGROUND tags and http URLs.
	Thanks to Rob Reid <reid@astro.utoronto.ca>.

1.1.1:
	* Fixed bug in converting grayscale images which are
	smaller when paletted (unusual situation).  Thanks to 
        Borek Lupomesky <Borek.Lupomesky@ujep.cz> for sending 
        us the image that revealed this problem.

1.1.0:
	* Added -w (web-probe) option for use with web2png and other script.
	* Added 0.99 release of web2png script.

1.0.0:
	* Dramatically improved manual page.
	* Added -O option, replaced -q with -v
	* Fixed a bug affecting multiple conversions after a grayscale image.

0.99:
	* -d option now actually deletes the source GIF(s).
	* Release packaging using automake/autoconf