TrueType and OpenType fonts

There is extensive operating system support for TrueType fonts, and they are popular with PC applications. Consequentially, TrueType is probably the most prevalent font technology in the industry today. OpenType is an extension of the TrueType font format.

The OpenType font format allows better support for international character sets and provides broader multiplatform support. The OpenType format allows both TrueType or Adobe Type 1 outline fonts to be packaged as a TrueType font. OpenType fully supports Unicode. Advanced Function Presentation data stream (AFPDS) accepts Unicode UTF-8 or UTF-16.