GeoPDF Publisher for ArcGIS Pro creates a GeoPDFPreferences.xml file and places it in the user's Application Data\TerraGo Technologies\GeoPDF Publisher for ArcGIS Pro folder the first time the user opens the TerraGo Preferences window. When the user modifies the export or view options, the software reads from the updated file.
You can standardize the options for your new users by modifying the GeoPDFPreferences.xml file as needed and then placing it in the GeoPDF Publisher for ArcGIS Pro installation directory on your users' machines. When your users export project layouts and view GeoPDF files, the software reads the preference options from the .xml file you placed in the installation directory. Only when a user modifies the preferences through the user interface does the software create an updated GeoPDFPreferences.xml file and place it in the user's Application Data folder.