In short: to make things easier and faster for you. When you first place an order on our website, you'll be required to add a payment method. However, we will NOT automatically charge your card once the order is generated. Nothing will be charged until we review the order and artwork and receive your approval. If you want faster turnarounds, and have selected "Straight to Production" as the turnaround time on your order, we will charge the order on our end after our team of experts determined that the artwork was print-ready and met all our print standards for optimum results. If you have "Free Online Proofs" selected for the order, then you will receive an email notifying you of your proofs where you'll need to review them and then authorize the charge on your end with the payment you entered into the order.