Hi there are many ways to achieve this. This can be on a per slide basis or for the whole slideshow.
In general, for an existing slideshow, to turn off pan&zoom for all slides, do this:-
-Start PhotoVidShow and load your project -Select the orange spanner icon (slideshow settings) located just above the storyboard -In the 'slideshow settings' window, make sure the 'slideshow' tab is selected -Select 'Disable Pan/Zoon' on all slides. -Select 'Done'
Alternatively you can also change the pan&zoom effect on a per slide basis by -Left clicking on a slide -Select the 'Pan & Zoom' tab on the left to be presented with many pan and zoom settings and controls.
All the above is in the user manual and the video tutorials.