423b5459__Students_at_College_of_DuPage__definition
[file extension] png (pronounced ping) [acronym meaning] Portable Network Graphics [definition] 
a new bit-mapped graphics format similar to GIF. Approved as a standard by the WWW consortium to replace GIF because GIF uses a patented data compression algorithm called LZW. In contrast, PNG is completely patent- and license-free. Only the most recent versions of Netscape Navigator and Microsoft Internet Explorer now support PNG.
Graphic File Formats for Digital Imaging Students at College of DuPage
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