PNG Last modified: Monday, August 12, 2002
Short for Portable Network Graphics, and pronounced ping, a new bit-mapped graphics format similar to GIF. In fact, PNG was approved as a standard by the World Wide Web consortium to replace GIF because GIF uses a patented data compression algorithm called LZW. In contrast, PNG is completely patent- and license-free. The most recent versions of Netscape Navigator and Microsoft Internet Explorer now support PNG. Also see JPG vs. GIF vs. PNG in the Did You Know . . . ? section of Webopedia.
Developer's area for PNG tools Collection of PNG implementation tools and specifications. It is maintained by Group 42, Inc., a contributor to the PNG effort. PNG home page The PNG home page offers a set of reference pages for locating code and information related to the PNG image format. PNG specification This is Version 1.0 of the WWW Consortium's PNG specification. It contains the definition of the file format and recommendations for encoder and decoder behavior. W3C's PNG page WWW Consortium's (W3C) resource page for PNG. It contains the latest specification, news and information on the PNG format. W3C's PNG specification This document describes PNG (Portable Network Graphics), an extensible file format for the lossless, portable, well-compressed storage of raster images. Yahoo!'s PNG page Yahoo!'s directory of PNG. RFC 2083 Request for Comments document for the Portable Network Graphics (PNG) specification.

Related Terms

bit-mapped graphics GIF LZW

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