Difference between revisions of "Type GIF"
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(Created page with "{| style="float:right;border:1px solid black" |+ Details | Defined Constant | <code>Type_GIF</code> |- | File Type Value | 205 |- | Parent Type | None |- | Carve | Yes |- | Fo...") |
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| Line 23: | Line 23: | ||
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| − | GIF | + | Graphics Interchange Format (GIF) image. |
=Description= | =Description= | ||
| − | GIF | + | GIF (pronounced JIF) was created by a company called CompuServe in 1987 to more efficiently push color images over dial-up modem lines. |
| + | It quickly became a standard on Internet. | ||
| + | This popularity lead to lawsuits because GIF uses LZW compression which was patented in 1985 by Unisys. | ||
| + | These legal troubles were the inspiration to create the Portable Network Graphics ([[Type_PNG|PNG]]) image format which is patent free. | ||
=Details= | =Details= | ||
| − | * [http://www.w3.org/Graphics/GIF/spec-gif89a.txt GIF] | + | * [http://www.w3.org/Graphics/GIF/spec-gif89a.txt W3 Specification] |
| + | * [https://en.wikipedia.org/wiki/GIF History] | ||
Revision as of 09:23, 2 December 2020
| Defined Constant | Type_GIF
|
| File Type Value | 205 |
| Parent Type | None |
| Carve | Yes |
| Format Details | Yes |
| MIME Type | image/gif
|
| Filename Extension | gif
|
Graphics Interchange Format (GIF) image.
Description
GIF (pronounced JIF) was created by a company called CompuServe in 1987 to more efficiently push color images over dial-up modem lines. It quickly became a standard on Internet. This popularity lead to lawsuits because GIF uses LZW compression which was patented in 1985 by Unisys. These legal troubles were the inspiration to create the Portable Network Graphics (PNG) image format which is patent free.
