Install a custom font you have downloaded

Not sure which font to delete?

Hover over each font to see extra information for it. Then delete the font that comes with the label Duplicate typeface. Corrupt fonts can result in erratic macOS behavior and even cause applications to crash often. To fix such issues, you can remove the font in question or reinstall it with a fresh file.

If you need to find out whether a particular font is the culprit behind a misbehaving application, you can have Font Book test if the font has gone bad. To do so, select the font in the Font Book app and click on the Validate Font option in its context menu or in the File menu. The app then tells you if the font is safe to use by displaying a green check mark next to it.

Corrupt fonts get a red X. To remove the fonts marked as corrupt, select their checkbox and click on the Remove Checked button at the bottom of the window. You can select multiple fonts in a library and validate them all at once. You can move fonts, collections, and libraries between Macs by exporting them to a folder first.


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Select one or more fonts in Font Book on the Mac you want to copy fonts from. If you select a library or a collection in the sidebar, the export option in the File menu shows up as Export Collection. Once you copy the exported folder to the second Mac, open its Font Book app. And Font Book definitely falls into that category. Have you always ignored this app or only ever opened it by accident?

How to Install Fonts

It might be time to fire up the app now and discover how useful it can be! Explore more about: Fonts , Mac Tips. Your email address will not be published. Top Deals. Email Facebook Whatsapp Pinterest Twitter. Enjoyed this article? Stay informed by joining our newsletter! Longer for those apps to display font lists, etc.

More importantly is they seriously get in the way of production work. The owners of print shops get very cranky when a client notices their slightly modified version of example Bookman Old Style wasn't used, and you have to toss thirty thousand dollars worth of paper alone out the door and do the entire press run over. It's either that, or sell them what you ran - if they'll accept it - at a rather steep discount.

If that sounds high to some folks, going through that much paper on a web press is very easy.

How to add or remove fonts on the Mac with Font Book

It's a big reason these instructions exist. By far, one of the best things Microsoft could do for users would be to allow you to easily remove fonts you don't need. For more detailed information on the various Mac versions of Microsoft Office, visit Diane Ross' web site. All information for older versions of Suitcase can be found in the old article link. This information refers to Suitcase Fusion 8 or 9. You can also replace this file in Suitcase's preferences. Click "New Vault" and choose the same location, which will appear by default. Say yes to replace the current vault.

How to Install Fonts into Font Book

A warning with the above method for resetting all versions of Suitcase Fusion. If you have Suitcase set to store fonts you activate in its vault and you delete its database, they will all disappear with it. If you always activate fonts in place and never use the vault, then removing the database is safe to do at any time with any version of Suitcase Fusion.

If you are using the vault and need to reset any version of Suitcase Fusion, follow these steps first to save the fonts stored in the vault. It will ask you where you want to save your fonts. Navigate to an existing folder or create a new one. Choose your target folder and press the Choose button. Suitcase will save full copies of the vault fonts to that folder. They will also be saved in subfolders by the same name of all sets you had them separated by. Relaunch Suitcase Fusion. This will add them back to the vault and recreate your sets by the same names you were using before.

If you work in a professional prepress environment, then this section will be important to you. I note this since not everyone reading this section may be clear on why you would want or need to do this. Apple made the unfortunate decision to give their Helvetica fonts the exact same internal names as the long standing Type 1 PostScript fonts from Adobe and Linotype. This creates a fixed font conflict that can be definitively resolved only by removing Apple's fonts from the system.

This does not affect the newer OpenType Helvetica fonts available from Adobe and Linotype as they do not have the same internal names, and can therefore peacefully coexist with Apple's versions. Since it can be imperative to use the exact same version of a font that was used to create a project, the conflict with the older Type 1 Helvetica fonts makes it necessary to remove Apple's fonts. Apple's Helvetica fonts have always conflicted with the Type 1 versions; but back in OS 9 and earlier, no one cared. Apple wasn't using their Helvetica versions in the interface or any of its applications, so it wasn't a problem to remove Apple's Helvetica fonts from the hard drive and put your Type 1 fonts in their place.

Then came OS X and Apple decided to start using Helvetica rather extensively in its applications design, forcing it to become a required font. For the typical home user, there is no need to replace the supplied. The information in this section is intended for advanced users. If you have no need to use older Type 1 PostScript or other older conflicting versions of Helvetica, Helvetica Neue or Courier, then please disregard these instructions. This avoids the possibility of your Mac becoming unusable by accidentally removing critical system fonts.

Activating, Deactivating, and Customizing Fonts

In all following cases, if you use Font Book and have manually removed Apple's Helvetica fonts, you must also reset Font Book's database. A damaged or orphaned Font Book database can also cause other font managers to be unable to activate or deactivate fonts, even if the Font Book application is not on the hard drive.

It can even prevent fonts from activating that you manually place in a Fonts folder. See section 7 under "Resetting Font Book's database" for more details. If you have already removed Font Book and reset its database, you do not need to repeat these steps. Removing Helvetica fonts in High Sierra through Catalina. Copy Helvetica. Suitcase can automatically circumvent the Apple Helvetica fonts. See section 17 for more on font cache removal.

Also, have the check box on for "Notify if a conflict occurs". You should always know when a font you're activating is turning another one off that you may need for a current project this check box has disappeared in Suitcase Fusion 8. Now you can leave Apple's Helvetica fonts right where they are in the System folder. When you open a conflicting Helvetica font normally a Type 1 version it will pop up a box that fonts you are opening conflict with the System fonts.

Continue and Suitcase Fusion automatically deactivates the system fonts in favor of the Helvetica fonts you just turned on. When you deactivate your Helvetica fonts, the Apple Helvetica system fonts are turned back on for you. I have double and triple checked this in various applications, turning Type 1 fonts on and off while I had a document open. Activate your Type 1 Helvetica fonts and the Apple fonts disappear from the available font menus. Deactivate the Type 1 versions and the Apple fonts are once again back.

Same with the Helvetica Neue fonts. If you'd rather be completely sure rather than relying on Suitcase's system to work, you may still want to remove Apple's fonts from the system folder and manually activate them from a different location when you don't need another version of Helvetica active. Microsoft Office used to have various issue if Helvetica Neue was absent, or was simply not the OS installed version. The Adobe apps aren't fussy. So that at least is nice for prepress and other users of Type 1 PostScript fonts. You can have the T1 PS fonts open for a project and still have all of your Adobe apps work.

This list is in order from highest priority to lowest. Fonts activated from Suitcase or other third party font manager not located on the Mac in any of the above folders are given the least priority overall. You can see then that a version of Helvetica activated by your font manager will be superseded by any version of Helvetica located in any of the previously listed folders.

In order to use your PostScript fonts activated by your font manger, all like named versions must be removed from the higher priority folders. Suitcase Fusion can bypass this limitation and override the system fonts. By that, I mean fonts you activate using Font Book will get a higher priority over other font managers as it uses the folders listed above to activate and deactivate fonts.