With Book Binding you can convert a PDF file to a BookBinding PDF format. In a BookBinging PDF the pages are distributed into a 4 page signature batch. The pages may then be folded into a signature. The signatures may be bound together and stiched into a book.
For increased page quality the output is a double width page that can be fitted on printing to the correct page size. Depending on the options it will generate between one file (for Duplex printers) and up to three files (separated cover, even and odd collection for printing in two steps for no Duplex printers).