Annotated edit history of
PNG version 11, including all changes.
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An [Acronym] for __P__ortable __N__etwork __G__raphics. Pronounced "ping". |
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A modern, losslessly compressed bitmapped graphics FileFormat, designated by the [W3C] as the successor of the [GIF] format. [PNG] is completely unencumbered with patents and licensing fees. This is important, as [GIF] has had problems in that regard (see [Unisys]). There is builtin support for [PNG] in [Mozilla] and [Opera]. |
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Recent versions of InternetExplorer display [PNG] images as well, however this browser does not support alpha channels natively. MicrosoftCorporation explain [how to use it anyway | http://support.microsoft.com/default.aspx?scid=kb;en-us;Q294714]. Not surprisingly, their approach to this hideous hack is completely incompatible with every other browser on the world, you should use [a slightly different method | http://webfx.eae.net/dhtml/pngbehavior/pngbehavior.html]. Thankfully, the upcoming InternetExplorer 7 [has had PNG alpha-transparency support added | http://blogs.msdn.com/ie/archive/2005/04/26/412263.aspx]. |
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pngcrush(1) is a [Free] utility to shrink your [PNG] images as much as possible, either losslessly or lossily depending on arguments. |
