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This article discusses the optimization of PNGs in order to reduce the size of JAR files of MIDlets which incorporate image files. Jar file sizes are often limited, and PNG images can contribute a significant portion of a files size, particularly if the midlet in question uses several images. The article describes several tools and techniques for decreasing jar size. The most useful (incidentally also the easiest to perform), involves simply converting from PNG-24 to PNG-8 format. All this involves is a simple operation in freely available image editing tools such as GIMP.

Another tool for PNG optimization not mentioned in this article is PNGCRUSH.

--Larry101 13:30, 12 September 2009 (UTC)

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Great article discussing how to optimize the size of .PNG Images. Nearly every aspect has been covered here, obviously the shrink in file-size, but also very valuable user experience regarding the quality of the obtained png's after having used a png-optimalizing utility.

Also a good list of those png-shrinking utility's is mentioned, so that anyone can start looking on the net for the utility which is most practical to himself !

This is simply a very good article which should be read by anyone which uses Images in their software (nowadays everyone actually) so that their basic knowledge regarding png's and their optimalization becomes common basic knowledge.

--Tiger79 11:22, 14 September 2009 (UTC)

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Good article on PNG optimization. Numerous references to tools will get productive quickly. If you'd like to know some more about png and its comprssion techniques you can go to http://www.smashingmagazine.com/2009/07/15/clever-png-optimization-techniques/

Well worth the read!--Warjan 10:22, 16 September 2009 (UTC)