PNG
Dan Tobias (Talk | contribs) (Created page with "{| |File Formats | > |Electronic File Formats | > |Graphics | > |'''PNG''' |} {{FormatInfo |extensions={{ext|png}} |mimetypes= {{mimetype|image/png}} }} PNG (Por...") |
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PNG (Portable Network Graphics) was devised starting in a discussion on newsgroup ''comp.graphics'' in 1995, with the first version of its specification released in 1996. The motivation for its creation was to create a free and unencumbered image format in the wake of the patent issue with [[GIF]]. | PNG (Portable Network Graphics) was devised starting in a discussion on newsgroup ''comp.graphics'' in 1995, with the first version of its specification released in 1996. The motivation for its creation was to create a free and unencumbered image format in the wake of the patent issue with [[GIF]]. | ||
| − | PNG has become a very popular graphic format, but widespread adoption on the Web was slow due to the fact that the first specification came out over a year after the Web had begun to be popular with the general public, meaning that there were many sites and browsers out there not using and supporting the new format; subsequently, browsers began to support it, but often had rendering problems which persisted even in fairly late versions years later; this caused webmasters to be slow to switch from GIF to PNG, though some are doing so now. Since the patent that | + | PNG has become a very popular graphic format, but widespread adoption on the Web was slow due to the fact that the first specification came out over a year after the Web had begun to be popular with the general public, meaning that there were many sites and browsers out there not using and supporting the new format; subsequently, browsers began to support it, but often had rendering problems which persisted even in fairly late versions years later; this caused webmasters to be slow to switch from GIF to PNG, though some are doing so now. Since the [[LZW]] patent that affected GIF is expired now, the "free format" motivation for the switch no longer applies. |
== References == | == References == | ||
* [http://en.wikipedia.org/wiki/Portable_Network_Graphics Portable Network Graphics (Wikipedia)] | * [http://en.wikipedia.org/wiki/Portable_Network_Graphics Portable Network Graphics (Wikipedia)] | ||
* [http://www.w3.org/TR/PNG/ W3C PNG specification] | * [http://www.w3.org/TR/PNG/ W3C PNG specification] | ||
Revision as of 22:46, 7 November 2012
| File Formats | > | Electronic File Formats | > | Graphics | > | PNG |
PNG (Portable Network Graphics) was devised starting in a discussion on newsgroup comp.graphics in 1995, with the first version of its specification released in 1996. The motivation for its creation was to create a free and unencumbered image format in the wake of the patent issue with GIF.
PNG has become a very popular graphic format, but widespread adoption on the Web was slow due to the fact that the first specification came out over a year after the Web had begun to be popular with the general public, meaning that there were many sites and browsers out there not using and supporting the new format; subsequently, browsers began to support it, but often had rendering problems which persisted even in fairly late versions years later; this caused webmasters to be slow to switch from GIF to PNG, though some are doing so now. Since the LZW patent that affected GIF is expired now, the "free format" motivation for the switch no longer applies.
