I need to sell pdf documents in a controlled way and protect the material's disclosure as much as possible. I need a link to be activated after each person signs up, gives notice of payment and I can confirm collection; to send an automatic email to the person so that they can download and the link to be deactivated after that first access. I need you to send me a download notification email identifying the day, date and user. And I also need the file to be downloaded to have a text in which the person's first and last name is added automatically.
If for some reason the person cannot download the file, they would need to be able to re-enable a link manually. (The PDF custom text could be done with API [login to view URL] that has 250 free conversions per month)
This must be made with custom PHP or Wordpress