Arial is an extremely versatile family of typefaces which can be used with equal success for text setting in reports, presentations, magazines etc, and for display use in newspapers, advertising and promotions. Fonts that you can download are dimmed in the font list. In the Font Book app on your Mac, do any of the following: Install fonts from your Mac or network: Click the Add button in the Font Book toolbar, locate and select the font, then click Open. Download Free Fonts. Collection of most popular free to download fonts for Windows and Mac. This free fonts collection also offers useful content and a huge collection of TrueType face and OpenType font families categorized in alphabetical order.