PO and PO Number PO stands for Purchase Order. You may need to provide it to Aspose if you like to pay through Wire Transfer instead of Credit Card. Mostly, customers ask about what to write in a purchase order or how should they create it and what is a PO number? Well, in purchase order, you can add information about your company, quantities and types of licenses of Aspose components you want to purchase etc. Moreover, purchase order number can be any number defined by your company. It's just like an identification number to identify your purchase order. You can write any number as a purchase order number. To make it more easier, we have created a Sample Purchase Order for our customers that can be downloaded from here. Customers can easily create purchase orders by themselves using this sample order and the information provided on this page.