# Digital Downloads
Each product within your store can have a digital download associated with it, a file selected from the file manager.
When that product is ordered, both the order completion page and the receipt email will receive a link to that file to download it.
When configuring a product to be a digital download:
- unless you are also shipping a physical good, change the Product is Shippable option to 'No' against the product
- set the Offer quantity selection option to No, only allow one of this product in the cart
- select a file from the file manager using the File to download on purchase option, on the Downloads and User Groups tab of a product.
- check that your product has an appropriately configured stock level, such as unlimited
Download Links
Links to downloadable files are not _direct links to files, they are instead unique links specific to the order placed. These links expire after a number of hours (48 by default), to prevent hotlinking. This number of hours can be adjusted via the Digital Downloads tab of Store / Settings, using the Number of hours before digital download links expiry field.
If you intend that customers can return to your site and re-download files further into the future, with a list of digital downloads they have purchased displayed, it is suggested to create a protected page on your site, and use user accounts to control access.