Translation of the book into electronic form is required

You need to translate the bestseller into an electronic form. Ordinary translation into PDF, Word, etc. I'm not interested. He is interested in the translation of the book into electronic form with the possibility of protecting the book and paying for the book. I mean. The user downloading the book to his device, should see a message that to read this book - you need to pay N euros. After payment, the user must receive a code that will allow you to read a copy of this e-book only on this device. If it goes, there will be many such orders. I expect the price and the time for one book.