Digital download should be able to assign a unique password to PDF files and give that to buyer.
Digital download should be able to programmatically assign a unique password to a PDF file so that every customer gets their own password.
A.C.T.N.T. Healthcare Services commented
We need to be able to assign unique user id and passwords to customers who purchase access to our online training courses. When you purchase a course, we want to automatically send a pre-determined unique user id and password from a provided list.