PDFTools

PDFTools is a PDF management application. It can encrypt, decrypt, join, split, stamp, create and rearrange a PDF file.

You will get to choose from seven main tools that will help you encrypt and decrypt PDF files, create, join, split or rearrange presentation files, include watermarks onto your PDF files.
Finally, to sum it all up, you should try PDFTools, an easy-to-use application that gives you access to numerous handy tools to help you improve your presentation files.