Handoff attaches files to your products and sends them when an order is paid. The buyer gets a download link by email, on the thank you page, and on the order status page. You set how long links last and how many downloads each file allows. Files sit in private storage. Buyers receive short-lived signed URLs only, so a forwarded link stops working. The Deliveries page lists every order. You can re-send the email, extend a link, or copy it for a support reply. No theme code changes.

• Attach files to any product from the Shopify admin. No theme edits needed.
• Buyers get the link by email, on the thank you page, and on order status.
• Set how many days a link lasts and how many downloads each file allows.
• Files stay in private storage. Buyers only ever get short-lived signed URLs.
• Re-send an email, extend a link, or copy it from the Deliveries page.