Icecream PDF Split & Merge PRO is a powerful yet very easy tool to split or merge any PDF files. There are 4 split modes (into single pages, by page ranges, by groups of pages, delete certain pages) and you can merge multiple PDF documents in a few clicks as well. Icecream PDF Split & Merge PRO works with password protected documents and allows to protect output files. Built-in PDF Viewer makes the process even easier. All this comes with the most thought-through GUI.