Drawings in PDF files are normally difficult to edit e.g. drawings of rooms or a building stored as pdf files; editing it, until now, would be almost an impossible task. However, having the same drawing in AutoCAD would make modifying the drawing so much easier.

This is what Convert PDF to AutoCAD exploits.

Convert PDF to AutoCAD is a free web service that does exactly what its name suggests – it converts PDF files
to drawing formats that are compatible with AutoCAD.

Using Convert PD...