In most applications that do not actively support such features, OpenType fonts work just like other fonts, although the OpenType layout features are not accessible. OpenType layout allows you to access features such as old style figures or true small caps by simply applying formatting to text. OpenType fonts have many advantages over previous font formats because they contain more glyphs, support more languages (OpenType uses the Unicode standard for character encoding,) and support rich typographic features such as small caps, old style figures, and ligatures - all in a single font.īeginning with Adobe InDesign® and Adobe Photoshop® 6.0, applications have begun to support OpenType layout features.
An OpenType font is a single file, which can be used on both Macintosh and Windows platforms without conversion. OpenType fonts can contain either PostScript or TrueType outlines in a common wrapper. OpenType supersedes Microsoft's TrueType Open extensions to the TrueType format. OpenType is a new standard for digital type fonts, developed jointly by Adobe and Microsoft. Like Type 1, the TrueType format is available for development of new fonts. Each company has made independent extensions to TrueType, which is used in both Windows and Macintosh operating systems. TrueType is a standard for digital type fonts that was developed by Apple Computer, and subsequently licensed to Microsoft Corporation.
Adobe offers some great reading on type formats: See Adobe explanations here
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