Which font extension is used on both PC and Mac?
Mac OS X recognizes TrueType and OpenType fonts (.ttf and .otf) but not the PC bitmap fonts (.fon).

So depending on the copyrights of the fonts you may transfer the .ttf and .otf font files.

To install the fonts:


Under Mac OS X 10.3 or above (including the FontBook)
Double-click the font file > "Install font" button at the bottom of the preview.
Under any version of Mac OS X:
Put the files into /Library/Fonts (for all users),
or into /Users/Your_username/Library/Fonts (for you only).