Before these fonts can be installed, they must be de-compressed using a software product called "Stuff-It". All MAC files that are downloaded from the WEB site are in a .hqx format (compressed).
If Stuff-It is needed, you can download it here - Stuff-It for Mac.
In order to install OpenType fonts, you must be running either Mac OS X, or running Mac OS 8.6 - OS 9.x with ATM 4.6 installed. If ATM is needed, you can download the FREE ATM 4.6 "Lite" version . Note: ATM Lite is not available for Mac OS X.
Installing fonts on OS 9 or below.
Open up the Hard Disk
Open up the System Folder
Open up the Fonts Folder
Highlight and drag the screen font (suitcase with "A" on it) and the printer font (not the .AFM file) into the FONTS folder.
Installing fonts on OS X.
Open up Hard Disk.
Open Up the Library Folder
Open up the Fonts Folder
Highlight and drag the screen font (suitcase with "a" on it) and the printer font (not the .AFM file) into the FONTS folder.
Note: Customers can also use Adobe Type Manager, Suitcase and Font Reserve to install their fonts. In these instances, they should consult the user guide on how the fonts should be installed.
Note: OSX users if you do not see the postscript fonts listed in the menu right away, then you need to restart your computer.
All font information supplied with permission from fonts.com