How to buy? Kolas Hemek June 03, 2016 07:16 Updated All our products are available at Gaaiho Store. You can buy from our website and pay with any credit card that allows online payment. Related articles How do I choose between Perpetual/Subscription license? Is Gaaiho Reader free? Failed to update/ upgrade to the latest version with Gaaiho PDF Updater. How do I find my serial number? How do I get an invoice after purchasing online? Comments 0 comments Please sign in to leave a comment.