jPDF Tweak is a Swiss Army Knife GUI application for PDF documents: combine, split, rotate, reorder (n-up, booklet), watermark, edit bookmarks/fileinfo/pagetransition, compress, encrypt, decrypt, sign, repair, edit attachments and more.
The program is no longer updated. Latest version, 1.1, released in December 2011, can be still downloaded from the official website.
Creates PDF Imposition output layouts from single or multiple PDF files. Makes custom layouts with any number of pages, signature styles, binding methods, printing styles within minutes even if you are new to the application.