Create animated and transparent GIF image

Gifsicle: Very useful tool to manipulate gif, and create animated gif:

http://www.lcdf.org/gifsicle/


== How to make an existing animated gif loop repeatedly ==

Solution involving the Terminal [1]:

1. Download the sources of Gifsicle
2. Unpack the sources and go to the unpacked directory
3. Do ./configure --disable-gifview --disable-gifdiff
4. Do make
5. Do cd src
6. And finally do ./gifsicle -bl /path/to/image.gif

Note: to install, after step 4, do: sudo make install

Solutions using GUI tools (I didn't test any them !):

1. You can try GifBuilder (requires Rosetta to work with Snow Leopard).
2. Pixen also seems to be a Gif Editor.

[1] http://superuser.com/questions/159212/how-do-i-make-an-existing-animated-gif-loop-repeatedly
[2] http://blog.iharder.net/2009/10/22/gif-create-animated-gifs-with-mac-os-x-preview-app/
[3] http://osxdaily.com/2013/01/27/make-a-transparent-image-png-or-gif-easily-with-preview-for-mac-os-x/
[4] http://osxdaily.com/2010/01/24/convert-images-in-mac-os-x-jpg-to-gif-psd-to-jpg-gif-to-jpg-bmp-to-jpg-png-to-pdf-and-more/