HTML and CSS Reference
In-Depth Information
ImageOptim
If you would like to optimize images of various formats in one go, ImageOptim would
be your best tool of choice. You can download this from imageoptim.com . This is
also for Mac OS X only, and takes advantage of several tools to perform these op-
timizations.
If you would like to use something similar on other systems, you can download the
specific tool you need for each image format. The following table lists tools for some
of the popular image formats:
Format
Tool
Animated GIF Gifsiclewww.lcdf.org/gifsicle/
JPEG
Jpegtranjpegclub.org/
PNG
Pngcrushpmt.sourceforge.net/pngcrush/
Imageworsenerentropymine.com/imageworsener/
Optipngoptipng.sourceforge.net/
PNGOUT advsys.net/ken/utils.htm
If you would like to learn more about using these tools for optimization, read more
on the slides by Stoyan Stefanov about image optimization for the Web at
www.slideshare.net/stoyan/image-optimization-for-the-web-at-phpworks-presenta-
tion . There are even more clever optimizations that could be done for PNG and
JPEG image formats, detailed over on Smashing Magazine at
www.smashingmagazine.com/2009/07/15/clever-png-optimization-techniques / and
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