PDF Splitter and Merger - Merge PDF For commercial use, it is necessary to upgrade and pay for the pro version after a trial period of up to 30 days. Merge PDF documents and split PDF files with PDF Splitter and Merger, PDF split merge software.
PDFsam - Split and merge PDF files. You can even distribute or transfer the software for free under the terms of licence! An open source, cross-platform tool that allows to split, merge and otherwise manipulate PDF documents. Screenshots, FAQ, documentation and a support forum.
VeryPDF Free Online PDF Merger - The software can be run on current Windows systems from Windows XP and above. VeryPDF Free Online PDF Merger is a free online PDF tool which can merge multiple PDF files to one online.