

With installed fonts, you can remove, disable, and enable fonts at any time:

Resolve Automatically : Font Book disables or moves duplicates to the Trash, as set in Font Book preferences.In the Font Book, choose Edit > Look for Enabled Duplicates. To resolve duplicates, you can choose:.The Font Book offers a simple way to identify and remove duplicate fonts on Mac. To find warnings or errors in a long list of fonts, click the pop-up menu at the top of the Font Validation window, then choose Warnings and Errors. A green icon indicates the font passed, a yellow icon shows a warning, while a red icon indicates it failed. Select the checkbox next to a failed font, then click Remove Checked. Follow the directions on the screen, then click the Font Validation window. If a font on your Mac isn’t displayed correctly or a document won’t open due to a corrupt font, you can validate the font or delete it. Double-click on the Font Book in the Applications folder and highlight one or more of the list’s dimmed fonts.Double-click the font file in the Finder, then click Install Font in the dialog that appears.Drag the font file to the Font Book app icon in the Dock.

Double-click on the Font Book in the Applications folder, then click the Add button, locate and select the font, then choose Open.To install new fonts on your Mac, do any of the following: If you don’t have time to go through the problem fonts’ validation process, you can do it later. Again, the Font Book addresses and resolves these issues before validation. There are thousands of fonts available online, both free and paid, and sometimes they don’t work properly on Mac. Sometimes the issue is simply that you’ve installed the same app more than once, and Apple prompts you to remove one of these before validation. When there are problems, you’ll see a message stating what’s going on. After the fonts get installed, the validation process occurs automatically. To use fonts in your apps, you need to install and validate them using the Font Book. The ability to add new collections is for organization use only. However, this does not affect how the font works across macOS and in apps. You can add new collections to the Font Book, then change where fonts reside. Drilling down further, you see the fonts arranged by collections, including Fun, Modern, PDF, and Traditional. Unless you’ve already manually added fonts, you’ll find all of your apps in the former category.

The list includes system fonts that have already been downloaded and others that you may want to add. The Font Book on Mac is located under the Applications menu on your computer.
