Instructs the given handler to zoom and pan its content so that it would fit into the given width and height (which
are pixel values). This is used when printing if we wish to fix to a specific page size like A4.
Parameters
handlerId: string
The ID of the handler to scale.
wh: PageBounds
Width and height (in pixels) to zoom to
margins: Margins = ...
Optional margins in [top,right,bottom,left] format. In this method, these values are expressed as pixel values.
Instructs the given handler to zoom and pan its content so that it would fit into the given width and height (which are pixel values). This is used when printing if we wish to fix to a specific page size like A4.