The Mac OS and many of its applications store temporary fonts all over your file system that must be cleaned up regularly for your documents to work properly. Smasher for Mac OS X clears font caches as well as temporary files and preferences for: Adobe Creative Suite 2, 3, 4 and 5, QuarkXPress 6, 6.5, 7 and 8, Microsoft Office X, 2005, 2008 and 2010, CUPS print spool files, Mac OS X 10.4 through 10.6 (Panther, Leopard and Snow Leopard).