Focus Page turning software
You can turn the pages with the navigation buttons, or click on thumbnails.
Right click a page for a context menu with options to zoom in or out,
jump to a page number and more.
You can use the mouse scroll wheel also to zoom in and out,
and just click and drag with the mouse to move
the expanded pages around the viewable area.
On android devices and tablets, swipe to change pages and pinch to resize