OpenType
lastmod 2018-08-17created 2017-01-311 edits
OpenType is a scalable format for computer fonts. It was initially developed by Microsoft, which was later joined by Adobe Systems. OpenType was first introduced in 1996, and numerous OpenType fonts began to emerge between 2000 and 2001. Adobe finished converting its entire font library to OpenType around the end of 2002. As of early 2005, about 10,000 fonts were available in the OpenType format, a third of which came from Adobe's library. As of 2006, every font company, large and small, is developing fonts in the OpenType format.
The file extension for OpenType fonts is .otf, though the TrueType font extension .ttf is also sometimes used, and they have the type code OTTO.