Font looks like a harmless file, but most of the time like this. However, like any computer files, fonts may be damaged or corrupted. When this occurs, they can cause a document or application problems. Use "Font Book" on the Mac to validate installed fonts to ensure that files are safe to use.
Note: The information provided herein applies to the following operating systems in the "Font Book": macOS Catalina (10.15) to Mac OS X Panther (10.3).
If the font is not displayed correctly, or not appear in the document, the font file may be damaged. If the document can not be opened, it may be a font used in the document there is a problem. Use "font book", you can test whether the font in question, and if necessary to remove it.
Similarly, you can (and should) verify the fonts before installing the fonts to prevent future problems. Verify font files during installation can not prevent damage in the future, but you can prevent your installation files.
Font Book is included in Mac OS X 10.3 and later. You can find the "Font Book" in the "Applications" folder. You can also click on the Finder menu bar of the "Go" menu, select "Applications" and then double-click the "Font Book" application to start the "Font Book."
How to use the Font Book verify the installed fonts
If you have questions about fonts, can be checked in the "Font Book" in. You can also choose to occasionally verify that all the fonts on the Mac, just in case. Here is how the "Font Book" approach has been installed fonts:
1. by clicking on it in the "Applications" folder, or access it from the "Go" menu to open the "Font Book."
2. Click a "Font Book" or more font names to select to validate one or more fonts. You may need to scroll down to find the desired font.
3. Select "File" in the "Font Book" in the menu bar, then select "verify fonts" from the drop-down menu.
4. Evaluation Results "font verification" window. I hope you all will see a green circle with a check mark next to the name of the font, indicating that these fonts can be used safely.
If you see a red X font problems in the red circle, check the box next to the name of the font, then click the "Delete Checked" to remove it.
Mac will prompt you to enter a password before you can remove a damaged font.
如果安装了大量字体，则可以一次全部验证它们，而不用选择单个字体或字体系列。单击“字体书”菜单栏上的“ 编辑 ”，然后选择“全选”。在“ 文件”菜单中，选择“ 验证字体”，然后“字体书”验证所有已安装的字体。
删除重复的字体
如果您验证了所有字体，则很有可能会发现自己有重复的字体。如果您有重复的话，“字体簿”屏幕底部的横幅会通知您。
单击自动解决以一次删除所有重复项，而无需进行审核。一种更谨慎的方法是单击“ 手动删除”以了解有关Mac上重复字体的更多信息。
每种带有重复的字体都会显示一次。将显示两种字体的示例，并标识了活动副本。您可以选择解决重复副本，这会将不活动的副本移到回收站，也可以保留所有内容。
注：如果您确实打算删除重复的字体，请在继续操作之前确保对Mac的数据进行备份。
如何使用字体簿验证卸载的字体
如果Mac上尚未安装字体集合，则可以等到安装它们来验证它们之后，或者可以提前检查它们，并将所有可能被Font Book标记的字体扔掉。Font Book并非万无一失，但如果它说一种字体可以安全使用（或出现问题），则可能是正确的。最好传递一种字体，而不要冒风险。
要在安装前验证字体文件：
1.打开“字体书”后，单击菜单栏中的“ 文件 ”，然后选择“ 验证文件”。
2.在您的计算机上找到字体。单击一次字体名称以将其选中，然后单击“ 打开”按钮。（通过按住Shift键并单击要验证的字体来选择多种字体。）
3.字体验证窗口显示所选字体是否可以安全安装或存在潜在问题。如果该字体还可以，请在其名称之前放置一个复选标记，然后单击“ Install Checked”以安装该字体。如果字体有问题，最好不要安装它。
以上就是给大家带来的如何在Mac上识别和删除损坏的字体，更多Mac软件下载（https://www.macjb.com/）就在Mac金币，欢迎访问。