Accepted solution
I believe that Revit does not support publish PDF with metadata directly. The way to get the metadata is by using an plugin that runs inside Revit. We have managed that by enabling metadada inside the Docuflow pdf tab. That app is available in the Revit app store as a free trial. You can see if that does what you want. In the image under you can see how you can enable the parameters export as metadata. We love the possibility to save the REvit document path of the in the PDF as metadata.
