• After a purchase, a download link or a download section is available (via email or a confirmation page).
  • After a purchase, a download link is provided immediately (without delay) to the user.
  • The process of downloading the book uses the Web service to download a publication. (The Web service Selling a publication should never be used in the download process.)
  • The download link displayed to the user is an internal link to the site of the merchant, which points to a temporary page that automatically redirects the user to the download link. (The download link that is provided to the user should not be the download link obtained in response to the Web service download a publication as it will expire after 1 minute.)
  • The link displayed to the user is secure. (The user must be logged onto the website of the bookseller to use this link. A user who has not logged onto the site who has access to this URL should be denied access to download.)
  • A section of purchase history is available to the user, so he can find a link to download the files (in case of technical problems with his computer, for example).
  • The download link works.