What is OpenType?

OpenType is a new format over the earlier TrueType and PostScript Type 1 formats for fonts. As described by Microsoft and Adobe, it is technically an extension of Microsoft's …TrueType Open format, which contains either PostScript or TrueType font outlines in a single font file used on both Windows and Mac. It also includes an expanded character set based on the Unicode encoding standard as well as advanced typographic intelligences for glyph positioning and glyph substitution that allows the inclusion of numerous alternatives glyphs in a single font file. ( Full Answer )