3D FlipBook - Many pdf for the same domain/site for pro edition

Hi, my question is: the pro edition (35€ or 85€) can be used to put and read multiple pdf file in the same site/domain at the same time? I have this site "Turnozero.it" in wich there are several stories in different pages of the same site. I want to use youre application to let read these pdf file. Is something that I can do, or youre application is useble only for one file/product?