I finally figured out how to get downloadable content attached to a product.
It seems to work fine (except for an error message related to shipping).
I can see the link to download, and it downloads just fine.
My question is, what is to prevent someone from simply copying the URL and sharing that with other people?
Here is the URL I was given after testing the checkout process:
http://wichitaoilpainting.com/store/...ingbreeze2.pdf
Now, this is a free product so I don't mind people downloading it. I want to know if this link works for everyone. If so, maybe I've done something wrong.



