Asus Eee PC S101H/XP - Manual (Page 20)

1-12 Chapter 1: Knowing the Parts
Touchpad Usage
Multi-finger gesture input
Finger gesture Applications
Two-finger zooming in/out
StarOffice Writer/Impress,
Adobe reader, Photomanager
Two-finger zooming in/out - Moving two fingertips apart or
together on the touchpad to zoom in or zoom out. This is convenient
when viewing photos or reading documents.
Zoom in Zoom out