3D FlipBook - Switch from light to pro mode

Hello,

we've used the light plugin until now and have 68 documents live on our website. As we want to make more style changes to the documents and the plugin we've bought the pro version. As it was not possible to activate it right away, I found out I first need to delete the the light version plugin. But how do I get all of the docs imported to the pro version, make sure that the links are still the same and can make it happen fast and safe?

Please help.