Animation created with Adobe Flash; may contain text as well as both vector and raster graphics; also may include interactive actions written in ActionScript; plays in Web browsers that have the Flash plug-in installed.
Flash was originally developed by Macromedia, which was acquired by Adobe Systems in 2005. Therefore, Macromedia Flash is now called Adobe Flash.
NOTE: SWF (pronounced "Swiff") was originally an acronym for "Shockwave Flash" since the SWF format was designed for Shockwave Player. However, SWF files have now become a standard means of publishing compressed Flash content on the Web. Therefore, the SWF acronym has been modified to mean "Small Web Format" as well.