Customize Mac Desktop Icons

Step 1 Create, copy or scan an image file into a paint program.

Step 2 Copy the image to the Clipboard by pressing Command-C.

Step 3 Select the icon you want to use the picture with.

Step 4 Open the File menu and choose Get Info, or press Command-I.

Step 5 Click in the box at the upper left corner of the Get Info dialog box.

Step 6 Press Command-V to paste the image into the box, and voilà - your new image will be used for the icon picture.