I was wondering if there was anyway to georeference a pdf directly without first converting it to an image. I have access to ArcGIS 10.1 but haven't been able to find any information that would indicate it is possible. I am willing to try other open source software if they have a solution.
Edit: I receive site plans in PDF form, often generated from AutoCAD. Currently I save the pdf as a jpg to import into ArcMap, geo-reference it and then digitize things like building footprints. I'm just wondering if there is a way to skip the conversion to jpg step.