Buy PDFpenPro now from our web store.
To buy from within the product itself:
1. Select Purchase / Register... from the PDFpen (or PDFpenPro) menu.
2. Click the Buy Now button.
3. Fill in your info and credit card details, and click the "Checkout" button.
4. Verify your order details, and click the "Submit Order" button.
5. Your name and serial number are automatically registered with the product. You will also receive an email with your serial number. If you ever need to enter it manually, select Purchase / Register again, enter your name and serial number from the email and click the "Register" button.