PNG is an acronym for Portable Network Graphic. The PNG file format offers a compressed lossless file format for graphic bitmap images. PNG files are very similar to GIF files. They contain bitmaps and offer a lossless compression algorithm but they do not contain copyright limitations.
Unlike GIF files, which can only provide for fully transparent or fully opaque pixels, PNG files provide for 8-bit transparency. While PNG files cannot be animated like GIF files can, the MNG file format (a file format related to PNG) does offer animation capabilities. PNG is becoming the preferred image format for graphics on the Web.
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