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Chapter 21. PNG Format > Creating PNG Files

21.7. Creating PNG Files

The good news is that there are quite a few tools out there for both PCs and Macs that can save files in PNG format. The bad news is that not many support special features such as alpha channel transparency or gamma correction. Furthermore, some programs that create PNG files do not compress them as well as they could (including Adobe Photoshop 4.0 and PaintShop Pro).

Table 21-2 lists PNG feature support in a number of popular graphics tools. For a more comprehensive list of image editing tools and graphics file converters that support PNG compression (as well as their known bugs), see http://www.libpng.org/pub/png/pngaped.html.


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