The original GX font tables - added data in TrueType files - are renamed AAT (Apple Advanced Typography) tables and are used by ATSUI to control rendering and line layout of Unicode text in ATSUI-savvy applications. Services for Unicode Imaging), which has been present in the System since Re-used within Apple’s new Unicode rendering technology ATSUI (Apple Type GX technology is no longer supported by Apple but the font portions have been

Unfortunately the technology was greeted with little enthusiasm from their customers, probably due to its large memory requirements for the time (not to mention the typographic naiveté of the desktop generation).Īpple Fonts Group commissions fonts to exploit its new technologies: TrueType versions of Helvetica and Times Roman with excellent low-resolution characteristics accompanied TrueType’s launch Skia showed off GX’s font morphing, and Hoefler Text made use of its automatic character substitution. Linotype and Bitstream both announced GX fonts. Over the next few years the advanced layout system GX (with advanced typographic layout, character substitution and font morphing capabilities) was developed, launching in 1994. Their most important work has been the TrueType system, built into the OS since System 7.0 in 1991, and soon licensed to Microsoft for inclusion in Windows. The Apple Fonts Group is responsible for how their operating systems handle fonts.

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