Well, I was going to say something along the lines of "I'm sure this is technically illegal, copyright being in the sad state it is, but since Douglas Adams is a cool guy he'll realize that this is in no way taking anything from him, but rather just adding a service for those who have already read the books.".
But clearly, since he just died, he will realize no such thing. Damn, damn, damn! (Him dying rather than him not realizing this, of course.)