This add-in is available for free to those on subscription. From the help file: "With the Autodesk eTransmit for Revit add-in, you can copy a Revit model and dependent files to a single folder for Internet transmission. You can transmit any model that has been upgraded to Revit Release 2012 or later and saved."... "You can select to: - Include related dependent files such as linked models and DWF markups. (See File Types Not Included When Transmitting a Model.) - Upgrade the Revit (.rvt) model and linked models to the current release. - Remove unused families, materials, and other objects from the Revit projects to reduce file size."
This App is a Plugin for: Revit