DPD, Digital Product Delivery, is a digital cart system for selling items like ebooks, music, videos, and more. It integrates with your website or blog, allowing you to sell directly from your online platform. DPD provides a platform for selling e-books and other downloadable products. Users can upload products to DPD's cloud servers, and DPD provides an "add to cart" button or link. This can be added to your website or social media page for direct purchases. DPD's fee structure is unique because it doesn't charge per-sale fees or commissions. All sale proceeds go directly to the seller's merchant account or payment provider. DPD supports payment platforms like PayPal, Stripe, and Authorize.net.