custom pdf products

[take2k3]

Hi everyone, I've been trying to create an online store with wp + woocmmer to sell custom pdfs, that is, I upload a pdf as a product (for example a book) and when the customer buys it, the pdf that would be downloaded would have personalized the back cover with some of the user's data, for example the name and their surnames and some personalized text, for example "With affection from ...", which would always be in certain places of pdf, these data could be the same collected in the user form or that are collected in a specific form of the store or plugin or that have to be entered just before the purchase or download. I have already seen options for the sale of digital products, pdf creation modules and plugins for personalization of user fields, but I can not do what I need.

Does anyone think of how to approach the subject?

Greetings and thank you