PDF Fly is an excellent tool for working on PostScript, PDF or EPS files. It lets you convert those files to vectoral formats (totally scalable and editable).
Some of these vectoral formats that PDF Fly converts to are: SWV, CGM, MIF (FrameMaker), DXF (AutoCAD), HPGL, WMF (MS Office) or EMF. Also, PDF Fly allows the conversion of PostScript, PDF or EPS directly to graphic formats like the following: TIFF, GIF, PNG, JPG or BMP.
PDF Fly lets you convert them to ASCII characters (it even lets you preview how they turn out). From the PDF Fly editor you can also view, rotate or retouch the resulting file.