How to upgrade Gaaiho Reader? Brad Lee November 26, 2013 09:14 Follow No need. Gaaiho Reader has a update feature that regularly checks for the latest version. Related articles How to update Gaaiho PDF software to the latest version Are there 32-bit and 64-bit installers for Gaaiho Reader? Where to download previous/older versions? How to uninstall Gaaiho PDF Suite/Driver? DocuCom Discontinued Comments 0 comments Please sign in to leave a comment.