Apple iPod touch iOS 3.0 - Manual (Page 75)

Chapter 8 Photos 75
Show or hide the controls: Tap the full-screen photo to show the controls. Tap again
to hide them.
View a photo in landscape orientation: Rotate iPod touch sideways. The photo
reorients automatically and, if it’s in landscape format, expands to fit the screen.
Zoom in on part of a photo: Double-tap where you want to zoom in. Double-tap
again to zoom out. You can also pinch to zoom in or out.
Pan around a photo: Drag the photo.