Apparently, Etsy announced their new digital download option in April but I missed it. I'm so happy about this as I started designing filet crochet items last year and placing them in my Etsy shop for sale. I'm considering doing some prim doll patterns too. I can see how people who design collage sheets would find this helpful as well.
Through this system, your customers can download patterns that you previously only offered via email. This will save so much time for the both sellers and customers.
Here is the forum thread at Etsy that covers the details of these types of listings.