PDF Merge Tool is an free and easy to use application designed to help you merge PDF files. You can merge any number of PDF files using this utility without any restrictions. the user interface is very simple and all you need is to add the PDF files which you want to make it one into the application. The interface also supports drag and drop feature for adding PDF files.
Portable PDF Merge Tool is the portable version of PDF Merge Tool developed to be able to run from a USB flash drive or any other portable device. You don’t need to install the utility to merge PDFs. The merged results are very good and the formatting is not lost.
PDF Merge Tool is a simple, fast and easy tool for merging PDF files. It runs on the .NET framework v2 and uses the PDFSharp library.
use http://www.pdftools.ws to merge/split pdf. also you don’t need to install software