Download the software from the download (click) page.

Double click on the downloaded "JAR" file to open the application.

Brows to the directory that you are having your book PDF file.

After browsing done, buttons become enabled.

Select any of the schemes described as Schemes one to four for printing on usual stationary papers and printers.

Sheets come as 1:1 scale; that is, for example, an A5 product becomes A4 landscape for a 1:1 A5 portrait booklet to be printed; also for other sizes.

Select "Imposition" scheme for large pages. This option creates a form layout, called in terminology of print-houses an imposition. Pages will be arranged on both sides of a sheet in a way that upon folding and trimming with print-house guillotines and cutters they'll be in order as a book

Sheets come as 1:1 scale; that is, for example, an A5 product becomes A2 Landscape for a 1:1 A5 portrait booklet to be printed; also for other sizes.

Click on "Multi-up (n-up)" button to create an m x n sheet of a one page PDF by entering that page number in the text field.

Or by selecting the desired range of pages (could start from page 1 to the last page of the document).