Applications can pick and choose your font to determine the features available. See the Unicode Consortium's web site for more information on Unicode.įont vendors can create tables that implement different sets of features. You may also need The Unicode Standard: Worldwide Character Encoding, version 2.0, which is available from Addison-Wesley. The other tables of the resource are described in the TrueType font specification. The complete 'sfnt' resource is not described here. This document explains the font tables you include in the 'sfnt' resource in order for your font to offer special features and effects. This document is intended for font developers who are creating fonts to be used with AAT. Many of these features are required for scripts other than Roman, such as Arabic or Devanagari.Īpple currently provides support for drawing using AAT fonts via Apple Type Services for Unicode™ Imaging (ATSUI). About Apple Advanced Typography Fonts IntroductionĪpple's text imaging technology, Apple Advanced Typography (AAT), enables applications to provide users with fonts having special typographical effects, such as cursive connection, ornateness, and complex ligatures.
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