Hi,
I think that the OCR recognition works well for PDF documents and the title block informations are available in the user defined attributes make it handy to find the right sheets.
But what about uploading Revit models to BIM360Docs. All defined sheets of the REVIt model are generated out of the model, but the meta data of the title block is not available in BIM360Docs.
So I have to decide: Either to go for the connection between the derived sheets and the 3D model (a plus to upload Revit models) or to have my title block information available when uploading (multi-)sheets from PDF.
Please consider that also on uploading the Revit file directly, all title block attributes are extracted and are available in the user defined fields.
Michael