The fonts required by CAD adding software can be imported into the Fonts folder in the installation directory of the CAD software. The specific operation method of adding fonts to CAD is as follows:

1. First use the mouse to right-click the CAD software, and then we need to click on the open file location option on the page that pops up.

2. Then we need to click on the Fonts option.

3. Finally, we need to paste the file to be added to this folder to realize the requirement of adding fonts to the CAD software.