Hello Jan,

Welcome to the forum.

Some answers to your questions:
1) Yes documents to go gives you word sheet slideshow and pdf, and the eDGe comes with full program.
2) Yes you can jump to any page while reading a pdf on e ink.
3) Yes again, but remember e ink needs external light to read from it, I don't know if red light will do

Waar woon je? Misschien is uitproberen een optie. (where do you live? Maybe trying is an option.)

Jos