You need to list is as a made-to-order digital download...........
Listing a digital download on Etsy is just like creating a listing for a physical product. When you create your listing, you can now list it in two different ways – as an instant download or made-to-order.
“Instant download” means you’ll upload the file when you create the listing and your customers will receive it immediately when they make a purchase. You can upload audio, image, or text files to your listing.
“Made to order” means that after a buyer purchases the item, they’ll receive an email confirming the purchase but won’t immediately receive the item. The order will show up as an open order in your Orders & Delivery page so you can keep track of it as you work on the customisation. When you’ve finished customising the digital download, you can complete the order by uploading the digital file or files. See all the steps of listing a digital item.
