How to Prepare Images for the Joomla Page Flip Book?
Joomla Page Flip Book Extension allows to show two different images on pages - one image for normal state and another for zoomed state. Small images size must comply with the flip book size. Large images must comply with Zoom Images Width / Height parameters. You'll get the best quality and performance in this case.
If you use images larger than 2000x2000px flip book can work slower.
Images for Joomla Flip Book Pages
Zoom Images for Joomla Flip Book Extension Pages