If you have a Web page or an application that you wish to show someone or save for later viewing, you can use your iPhone's built-in screenshot feature to create an image file of your screen. After you create the screenshot, you can sync your picture through iTunes, view it on the iPhone's Gallery app or send it to a contact using email.
Open the program on your iPhone of which you wish to take a screenshot.
Press the "Home" and "Sleep" buttons simultaneously until you see the screen flash and hear a camera snap sound.
Tap "Photos" on your iPhone's main screen and tap "Camera Roll." Tap your screenshot at the bottom of the list of photos to view it.
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