PNG file (*.png) Export Only

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PNG (Portable Network Graphics) format is an alternative to the GIF format for adding graphics to web pages. You can save, but not open, files in PNG format. The PNG format is fairly new and was designed to address many of the shortcomings of the GIF format. In particular, the PNG file format offers true color images, is less prone to transmission errors and offers a full alpha channel for specifying background or transparency options.

For additional information about PNG visit: http://www.boutell.com/boutell/png