You can't. Save as PDF and pray that your Windows counterpart won't mind not being able to edit the doc.
Finder>>Applications>>Font Book
To add fonts to a Mac, you can simply drag and drop the font files into the Font Book application on your computer. Font Book will then install the fonts for you, making them available for use in various applications on your Mac.
Mac OS X stores fonts in both the Font folder in the Library folder at the top hard disc level and also in a individual user's account Library Font folder.
Unfortunately you cannot embed font profiles in Powerpoint while using a Mac.
There are thousands of fonts available for Mac OS X. Some are installed as standard with the OS (See links below). Others will be installed with certain packages such as software by Adobe or Microsoft. There are also many other sources of fonts either free or paid for (See links below).
The fonts have different formats and so need converting to work with the other system. Some Windows fonts will work with some Adobe software on a Mac, such as InDesign, without conversion. TransType is a popular conversion solution (See links below) .
FontSpace offer 1036 free script fonts. Their fonts can be downloaded easily and used on both Windows and Mac. One can also customise the preview on the website in order to see the final result.
Because of the magical ponies that mess it all up.
http://www.themeworld.com/cgi-bin/preview.pl/fonts/factor.0.zip
I am not quite sure what you mean, but if you mean fonts, there are already a couple included with mac. If you mean a translator script, in dashboard, there should be a widget already there.
The old version of Equation Editor needs specific fonts to work. You can go to the Design Science website and download the trial version of Mathtype and it will update your fonts. If you decide not to purchase Mathtype, the fonts are left when it degrades. You may want to buy it if you are doing a lot of equations.
Alot more than PC but they aren't diplayed in the pull down menu's
themeworld.com/cgi-bin/preview.pl/fonts/factor.0.zip ^ here is a made font for it :) its not the one they used but its similar and created as the MAC font for people who want to use it