If you email, it does use the document number (invoice, PO, etc.).  If you manually print to a file, it expects you to assign a file name and if you do not, it uses a date/time reference.

You can include the file name in the Location.

Unfortunately, the print dialog box is a generic interface and for reports there is no document number.  But I will ask programming what they can do.

They CAN be named. After browsing to or manually typing the path, make sure you have a "\" at the end of the path and type whatever you want for the name.
 

Kelloggs - I knew you understood, but it seemed that cellis didn't.

Not for us with T7SOF with banner date of 2/17/12 (SP1 version).
 
But anyways that has a different major problem so we're not using it - it always prints both Invoice and Ship Dates as TODAY when you do an Invoice Reprint, regardless of the actual posted Invoice Date.

BKSOF works fine.
 
T7SOF dated 2/17/12 give us TODAY, while the one from the last full update (Dec?) puts in 00/00/00...