function zoomIn( 
   factor : number
) : (Any);

var resultVar = instanceOfPageView.zoomIn(number);

Parameters

factor

Use this parameter to indicate how much to zoom in on the image. The value should be greater than 1 because 1 indicates no zooming. A value of 2 indicates the image should double in size. Typically, you should use a value between 1.25 and 1.75.

Zooms in on the current image, while keeping the portion of the image at the center of the viewer remaining in the same location.

Reference

PageView class
PageView Members