How do I "break curve apart" on multiple curves?

When importing PDF files, the lines are often combined in very odd ways. Often pdf files are the only way I receive technical drawings (DRW), and I need to edit them and/or break them apart. So far, the only means I've found to edit line art in such PDFs is to tediously select each line and click "break curve apart."

I'd like to know if there is a way to select ALL lines in a drawing and break them all apart in one fell swoop!

(Perhaps a VB macro?? -- Or some sort of import method?)

It would save me a great deal of time on my job if I didn't need to break each curve individually when I need to take one portion of a drawing.

Indyrose