Fonts image text in nearly every part of the user experience in iPhone and Mac OS X. Creating fonts that image your text data requires knowledge of font tools, Unicode, languages and their shaping behaviors, and of font formats as explained in font specification documentation.

Apple Font Tool Suite

A suite of command line tools for working with font files. This is a single installer package, complete with 60 page Tutorial, User documentation and Quick Reference. Download now

Apple Advanced Typography (AAT) Font Format Specification

Apple provides its own TrueType Font Format Specification. The Apple Advanced Typography (AAT) Font Feature Registry specifies software for advanced font rendering.