It's been some time since I have read the reviews of the big Sony devices. My recollection is that the most recent version will only handle PDFs. I think it do

It's been some time since I have read the reviews of the big Sony devices. My recollection is that the most recent version will only handle PDFs. I think it does support making annotations but with some sort of weird limitation. Anyway, my memory could be faulty, so it's best if you find and read the reviews yourself.