The trial cannot be legally extended. You must purchase a license. Beware of websites offering “ABViewer 15 license key upd” files — they are almost always fake or malicious.
For further help, visit CADSoftTools official support page or contact their team directly with your license key on hand. abviewer 15 license key upd
: Launch ABViewer and click the "?" (Help) icon in the top right corner. The trial cannot be legally extended
If you're an existing user of AbViewer, you may need to update your license key to take advantage of the new features and improvements in version 15. Here's how to do it: abviewer 15 license key upd