Where to download previous/older versions? Alex Cheng April 12, 2019 07:11 Updated Gaaiho Series: Gaaiho 1.X/2.X/3.X/4.X DocuCom Series: Docucom Gold 9.51 DocuCom Driver 9.51 Related articles How do I find my serial number? Is upgrading Gaaiho PDF Suite free? How do I activate Gaaiho PDF 4 online/offline? How to uninstall Gaaiho PDF Suite/Converter? Failed to update/ upgrade to the latest version with Gaaiho PDF Updater. Comments 0 comments Please sign in to leave a comment.