Create custom icons for files or folders on Mac
You can create a custom icon for any file or folder using your own pictures, icons downloaded from the web, or the icon from another file or folder.
Use your own picture or a picture from the web
On your Mac, copy the picture you want to use to the Clipboard.
One way to do this is to open the picture in the Preview app , choose Edit > Select All, then choose Edit > Copy.
Select the file or folder whose icon you want to replace, then choose File > Get Info.
At the top of the Info window, click the picture of the icon, then choose Edit > Paste.
Use an icon from another file or folder
On your Mac, select the file or folder whose icon you want to use, then choose File > Get Info.
At the top of the Info window, click the icon, then choose Edit > Copy.
Select the other file or folder, then choose File > Get Info.
Click the icon, then choose Edit > Paste.
Restore the original icon for an item
On your Mac, select the file or folder, then choose File > Get Info.
At the top of the Info window, select the custom icon, then choose Edit > Cut.