In October, 2020 we released GeoViewer Pro as a free upgrade to GeoViewer. To activate the Pro features in GeoViewer, download the license file from http://cs.us.extensis.com/geoviewer_license_file/lservrc.zip.
Unzip the lservrc file and place it in the C:\Program Files\LizardTech\GeoViewer\ folder. The next time you open GeoViewer, you will see View License in the Options menu instead of Purchase Pro License.
If you didn’t install GeoViewer for all users, the lservrc file goes in C:\Users\username\AppData\Roaming\GeoViewer\ instead.