Saving a pending print job as PDF

I sent a confirmation page from Safari to the printer and quit Safari, only to realize that the printer does not actually exist. The only remaining copy of this information is in the print queue.

How do I salvage the information waiting to be printed so I can use it again?

Note: Dragging the enqueued item from the non-existant printer's queue to an existant printer's queue will print the item. I would like to know how to save the file waiting to be printed so it can be used again.