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PNG (Portable Network Graphics) is another format used with web pages. PNG supports all color modes, 24-bit images, and transparency. One disadvantage of using PNG is that color profiles can’t be embedded in the images, as they can with JPEG. An advantage, however, is that PNG uses lossless compression, resulting in images without degradation.

PNG is also an option in the Save for Web dialog box. Choose File ⇒ Save for Web to export your photos as PNG.

When saving images for the web, if you have an image with just a few colors, such as a logo, try the GIF or PNG-8 format. If you need transparency in an image, you need to use either GIF or PNG-24. Quite often, you’ll find that PNG-24 results in the best-looking image.