This is just a quick view of the basic zoom and pan features. For more features like the slide show please see the features link.
When the voice says “click” to zoom, it means click down and up. This is one aspect that you need to get used to – but you do quickly.
Note that in the video when the voice says “actual size” what is meant is fit size – so the picture fits the window. Actual size can be obtained by pressing the A key.