Term: PNG
Note:
“Search Glossary” button searches only the glossary. Temporary note: search not enabled for two- and three-character terms; browse by alphabet.
“Search“ button at the top right of the page searches the Web site, not the glossary.
Suggest a term
Term: PNG
- Definition:
- PNG, or Portable Network Graphics, is a file format for a lossless, portable, compressed, raster (bit-mapped) image. PNG is fully streamable with a progressive display option making it work well in online viewing applications, such as the World Wide Web. Indexed color, grayscale, and RGB color (referred to as truecolor in the specification) are supported, with optional transparency (alpha channel). PNG can store gamma and chromaticity data as well as a full ICC color profile for accurate color matching on heterogenous platforms. The PNG format was originally designed as an open standard to replace GIF_89a for use on the Internet, but is not limited to that use.
- Category:
- Image
- Resource:
- W3C Portable Network Graphics (PNG) Specification (Second Edition) Information technology - Computer graphics and image processing - Portable Network Graphics (PNG): Functional specification. ISO/IEC 15948:2003 (E)
https://www.w3.org/TR/PNG/ - PNG entry on Sustainability of Digital Formats
https://www.loc.gov/preservation/digital/formats/fdd/fdd000153.shtml - See also: