On my PC I have i.e. BullZip PDF Printer_a Free SW installed, but they are of course some others too_it works as a (emulated)printer. If you wish to have a pdf out; select print out in CAD, but instead some regular printer these "BullZip..:" thing. It will save to first it in a PDF (in Temp, or you can change it into some one right folder on your PC) & click => it will saved as pdf...
In these system can you select ("edit") an exisisting pdf file too, than you will save it not fully, but only some wished pages from your origonal PDF document...
K.