Once you’ve downloaded a “wallpaper” image, you can either set your desktop background (“wallpaper”) directly, or save the JPEG file to your hard disk. Setting the wallpaper directly is easiest, but it has the disadvantage that you’ll lose the image if you later change the wallpaper. You’ll have to download it from the Web site if you want it again. If you save the JPEG file, it will still be there if you change the wallpaper; and you can do other things with the image.
Note: Be aware that a wallpaper image ties up a chunk of
memory equal to three times the image dimensions (one byte for each
color). So a 1024x768 desktop background occupies somewhat more than two
megabytes of memory, and a 1680x1050 wide-screen image uses 5.3
megabytes. That shouldn’t be a problem with current computers that have 2
gigabytes or more of RAM; but if you have an old computer with less than 512
megabytes of RAM, you really shouldn’t be using a large image as wallpaper.
To set the wallpaper to the image, move the mouse cursor over the image, right click, and then:
If you’re using a screen resolution higher than 1024x768 (or 1680x1050 for the “wide screen” images), open the Windows Control Panel, choose “Display Properties,” and select “center” rather than “tile”. The image will be centered on the screen, with the borders in the background color of your display scheme. Some versions of Windows include the option of expanding the image to fill the screen.
To save the image file, move the mouse cursor over the image, right click, and then:
For Macintosh OS X
To set the wallpaper, move the mouse pointer over the image, click, and hold down the button to drag the image (as a miniature icon) to the desktop. Then click on System Preferences and drag the image icon from the desktop into the “well.”
To save the image file, move the mouse pointer over the image, click, and hold down the button to drag the image (as a miniature icon) to the desktop, or to the folder where you want to save it. You can enter the location of the saved file into your browser, and then set the wallpaper as described above.
Save the image file in a folder, as described above for your operating system and browser.
After selecting your iPhone or iPod in iTunes, click the “Photos” tab and check the “Sync photos from” option. Then select “Choose folder...” from the menu, and navigate to the folder in which you’ve saved the image file.
On the iPhone or iPod, open the image in the “Photos” app. Tap the “share” control (in the lower left corner) and choose “Use as Wallpaper.”