Pinch And Spread - HTC One User Manual

24 Your first week with your new phone

Pinch and spread

Two-finger swipe
In some apps that have sorting, like Mail or People, swipe up or
down using two fingers to scroll the screen. The screen displays the
sorting order, and you can easily scroll to the information you want.
In some apps, like Gallery, Messages, Mail,
or the web browser, spread your fingers
on the screen to zoom in when viewing a
picture or text.
Pinch the screen to zoom out of the picture or text.