Changing File type

Is there a way to change a drawing from one file type toanother and retain the history. It is not uncommon for us to haveold legacy scanned handrawings or AutoCAD drawings that getrecreated in SolidWorks. In our legacy system, a drawing it

Anyone else needs this requirement? Our thought is that a drawingis the same thing in our system regardless of what format it may bein. Revisions A-C maybe scanned hand drawings, Revisions D-F maybeAutoCAD, then Rev G may be SolidWorks. We have a history with thedrawing, not the file type.SolidworksSolidworks Pdm enterprise Pdm