Installing the GeoServer GeoFence WPS Integration
- Visit the website download page, locate your release, and download: http://sourceforge.net/projects/geoserver/files/GeoServer/2025.1/extensions/geoserver-2025.1-geofence-wps-plugin.zip - The download link will be in the Extensions section under Other. - Warning - Ensure to match plugin (example 2025.1 above) version to the version of the GeoServer instance. 
Extract the files in this archive to the
WEB-INF/libdirectory of your GeoServer installation.
Restart GeoServer