I've been digging around the forum and documentation, reminding myself about how GF works after a long hiatus from WP site work. The dusty brain wakes up.
To charge for a download, I'm going to use GF PayPal which I've configured. Then I guess the best course of action is to have an email with a URL address to go and collect the download. My question, does the confirmation email trigger after PayPal gets the money?
I haven't figured out how to test this....