17. The graphical user interface of claim 15 , wherein the device is a portable multifunction device.
15. A graphical user interface on a device with a touch screen display, comprising: an electronic document having a document length and a document width, to be displayed on the touch screen display at multiple magnifications including a first magnification; and areas beyond opposite edges of the electronic document; wherein: in response to detecting a gesture on the touch screen display corresponding to a command to zoom out by a user-specified amount, wherein the gesture is detected while displaying the electronic document at the first magnification, the electronic document is displayed at a magnification less than the first magnification on the touch screen display; if the document length or document width is entirely displayed while the gesture is still detected on the touch screen display, the electronic document is displayed at a magnification wherein the areas beyond opposite edges of the electronic document are displayed on the touch screen display; and in response to detecting termination of the gesture, the electronic document is displayed at a magnification wherein the areas beyond opposite edges of the electronic document are no longer displayed on the touch screen display.