Currently there are two possible options to purchase pages for Cloud OCR SDK:
1) for standard volumes payment is performed via PayPal or 2Checkout. This purchase procedure is fully automated. If you do not have the PayPal or 2Checkout account, you will have a possibility to create it in the opened page during the payment procedure. Please see Online purchase guide for details.
In case of PayPal you can get the PDF invoices for every your purchase to your email if you enable the "Send PDF invoices for every completed purchase" option in the Invoice settings of your Account settings. Also you can get the invoices for your previous purchases in the Purchases history section. Click on the corresponding link in the Order# column.
In case of 2Checkout the invoice will be sent automatically to the billing email address provided during ordering. For each completed order, a payment receipt will also be sent automatically to the billing email address provided.
2) for contractual cases (more than 100 000 pages for the period of time) you can contact your region sales manager to discuss more convenient conditions of using our service.