"Buy Now" Question

Hello,

Here is my dilemma or question.

I want to have a page on my site where there are links to “Buy Now” files. But how do I protect those files?

If I am correct, and I uploaded those files to the security-enabled directory, then the person purchasing would have to be a member right?

I want these files to be able to be purchased by non-members… but I also want my files protected so the links can’t be spread all over the internet and downloaded by anyone.

I hope that made sense lol.

Any help is appreciated!