download link or email to differnet ebooks

Hello, I have multiple ebooks, and want the customer after purchase to be taken to that specific ebook page to be able download it, or receive an email with the purchased ebook download link (whichever is the easiest).

It looks like it’s only possible for them to be redirected after purchase to one URL or receive one email, no matter which ebook they purchased..? I don’t want them to be able to access ebooks they’ve not purchased…

I seem to remember reading a post about this, but I just can’t find it! Could someone please send me a link? Thanks!!