Choose a payment system or shopping cart software that takes payment and redirects the buyer to a download page. Most shopping carts can handle this, such as 1shopping cart or Zen Cart. Some Web hosting platforms automatically include a shopping cart as part of the hosting plan.
Upload the e-book to a folder on your Web server using File Transfer Protocol (FTP). Your hosting company may have an FTP client available to upload files. Upload the e-book to the Public_html folder, or to a folder of your own choosing. A folder with a unique name works best to prevent people from guessing the name of the download page, and downloading the e-book without paying for it.
Create a page on your Website where your payment system will redirect buyers after they purchase the e-book. Provide a link to the e-book's location so buyers can download it. You may also use a "Download" button instead of a link. Use the download page to provide special instructions, thank the customer, and suggest other products.
Set up an auto-responder to automate the delivery of the e-book. You receive an email after a customer makes a purchase, which triggers the auto-responder to send the e-book to the customer. Available auto-responders include Aweber, Constant Contact, and 1Shopping cart. The best auto-responders are part of your existing shopping cart or easily integrated with it.