Font issues, especially damaged fonts, can lead to various issues in Illustrator and InDesign. Follow the troubleshooting steps explained in this article to resolve these issues.
- Open the plug-in folder.
macOS:
[Illustrator] Choose Applications > Illustrator > Plugins.
[InDesign] Choose Applications > InDesign > Plugins.
Windows:
[Illustrator] Choose Program Files > Adobe > Adobe Illustrator > Plugins.
[InDesign] Choose Program Files > Adobe > Adobe InDesign > Plugins. - Copy the font management utility and paste it on the desktop.
Font management utility is Extensis, Suitcase, Font explorer, Font explorer Pro, RightFont, and NexusFont.
- Remove the plug-ins from the plugins folder.
- Quit the application and the Adobe Creative Cloud desktop app (if installed).
- Choose Applications > Utilities.
- Open Terminal.
You need to be careful when using Terminal as it affects your operating system at a low level. To review the Atsuil manual, type man atsutil
and press Return, or read this article. - Type the following command and press Return.
sudo atsutil databases –remove

Windows:
- Turn on hidden files and folders.
- Close all Adobe applications including the Adobe Creative Cloud desktop app (if installed).
- Navigate to C:\Windows\ServiceProfiles\LocalService\AppData\Local.
- Delete the *FNTCACHE*.DAT or *FontCache*.dat files.
The asterisk (*) indicates various numbers, letters, or words, such as FontCache-S-1-5-21.dat.

- Choose Applications > Font Book.
- In the Collection column, choose All Fonts.
- To select all the fonts, select the top-most font in the Font column and press Cmd+A.
- Choose File > Validate Font.
- Delete the damaged or duplicate font.
If Font Book crashes, restart Font Book, and scroll through the fonts one by one. Determine the font that caused the crash. Use the Down arrow key to select the first font, then hold the key down to scroll through all your fonts.


Windows:
- Type Control Panel in Windows Search and press Enter. In the Control Panel, open Fonts folder.
- Select all the fonts, and copy and paste them in a folder on desktop.
- Trash the fonts from the Fonts folder.
- Copy and paste each batch of fonts from the desktop to Fonts folder and launch the application. If you are unable to launch the application, the damaged font exists in the Fonts folder.
- Identify and remove the damaged font, and relaunch the application.

- With the macOSX 10.7 release, user library folder is hidden by default. To access files in the hidden library folder, see how to access hidden library files.
- Make sure that your fonts are located in only one font folder. If your fonts are duplicated, remove them from any one location.
/Users/[user name]/Library/Fonts
/Library/Fonts
- Create two folders on the desktop: font test and good fonts.
Perform the font testing for the following folders:
- /Users/[user name]/Library/Fonts
- /Library/Fonts
- /[network drive]/Library/Fonts
To test the damaged font, keep half your fonts in the Fonts folder. Move the other half to the font test folder, and test the condition that caused the problem:
- If the problem recurs, the damaged font is in the Fonts folder. Move the fonts from the font test folder to the good fonts folder.
- If the problem does not recur, the damaged font is in the font test folder. Move the fonts from the Fonts folder into the good font folder. Move half the fonts back into the Fonts folder for the next round of testing.
Perform the below steps to remove the damaged font:
- Test half the remaining fonts, and continue to move the fonts without damage into the good Fonts folder.
- Identify the font that is causing the problem, remove it from the Fonts folder. Move all the fonts from the good fonts folder back to the appropriate Fonts folder that you are testing. Perform these tests for each Fonts folder that contains fonts.
If the problem recurs after you remove a font, continue to perform these steps until all damaged fonts are removed.
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