QuarkXPress® requires AXt fonts and Layout Ltd’s ArabicXT™ extension for setting Arabic text. AXt fonts are non-Unicode fonts, using the ‘Mac Roman’ encoding; Arabic glyphs are substituted for the Roman glyphs, so for example ‘alef’ replaces capital letter G.

There is a bug in QuarkXPress 6 that reports that fonts are corrupted when they are not. The bug has been acknowledged by Quark.

While all OpenType fonts will work in nearly all existing software, only some applications take full advantage of OpenTypeʼs advanced layout features. Applications such as InDesign, Illustrator, PhotoShop, QuarkXPress 7 (and higher), Word 2010 and Mellel offer these options.

While all OpenType fonts will work in nearly all existing software, only some applications take full advantage of OpenTypeʼs advanced layout features. Applications such as InDesign, Illustrator, PhotoShop, QuarkXPress 7 (and higher) and Mellel offer an interface for controlling these options.

While all OpenType fonts will work in nearly all existing software, only some applications take full advantage of the OpenType advanced layout features. Applications such as InDesign, Illustrator, PhotoShop, QuarkXPress 7 (and higher) and Mellel offer these options.

Comprehensive table of OpenType feature tags and their support in applications (software). OpenType features are created by using the tags in creating feature scripts that describe how characters are to be manipulated to make the desired feature.