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PDF Mod is a simple application for modifying PDF documents. You can reorder, rotate, and remove pages, export images from a document, edit the title, subject, author, and keywords, and …

PDF-Shuffler is a small application which allows to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface.

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,...

Advanced PDF Utilities Free comes in handy when you need to deal with PDF files such as to merge or split pages, convert PDF to text & convert image to …

Couturier is a PDF merge application for the GNOME Desktop. It allows to merge multiple PDF documents and images into one single PDF document.

iCombiner is a productivity tool for Mac OS X that allows you to combine PDF files, TIFF files, images, photos and scanned documents into a single PDF file.