Simple PDF Merger - Version 1.3 Simple PDF Merger is an efficient application designed to help you combine multiple PDF files into one PDF file. Different merging methods are available to you. It allows you to choose any page from each PDF file and combine them into a brand-new PDF file. Simple PDF Merger also works with all Windows operating system such as Win7 x64, Win7 x32, Win Vista, Win XP, Win2000, Win98.