3D FlipBook - Position of FlipBook on Mobile Devices

The pdf preview is cut off when tilting iphone horizontal. On mobile devices it doesn't respond to scrolling down manually to adjust the position of the preview. I have disabled zooming in the settings, since it would disable the scrolling down option and instead zoom in when using the mouse wheel to scroll down.

Fullscreen may solve the problem, but the option doesn't work even in Pro Version and I couldn't find an email contact on this website. How to I received that from you? Implementing plugin for a friend and have access to license key etc.