PDF Split & Merge is a free open source tool to split and merge pdf documents. PDF Split and Merge is a very simple, easy to use, free, open source utility to split and merge pdf files. It’s released in two versions: basic and enhanced. Includes a console and a GUI interface. The Basic version is very simple and stable. It’s completely free and it covers most of your needs.
Enhanced version is open source and has more features than the basic version. It’s “almost” free, you can download the source code, compile and use it
Edit PDF text and objects with full editing features.
Edit, convert, combine, and create PDFs on your Mac.
This program helps you split, merge, and compress PDFs.
Merge, split, watermark and crop PDF documents with PDF Plus.
Extract given page ranges as well as merge various PDF documents.