HOW TO USE IMAGES AS DESKTOP WALLPAPER ON YOUR COMPUTER PC Users: Choose and click on the size that best fits your screen area. After the picture is fully loaded, click on the picture with your right mouse button and choose "Set as Background" from the menu that appears.
Mac Users: Choose and click on the size that best fits your screen area. After the picture is fully loaded, save the image to your hard drive. Control-Click anywhere on the desktop to bring up the Sub-Menu, select Change Desktop Background, select the Picture tab, then click Select Picture. Select the image you saved and then click Set Desktop.
How to check the size your current desktop: Click on "My Computer" - then "Control Panel" - click on "Display" icon, select the "Settings" tab - underneath the slide bar your current screen resolution setting will be displayed - i.e. 800 by 600 pixels. Although you should see a pop up box on this page informing you of your screen size. Hit the F5 key or refresh the page to view again.