As PDF becomes a world-wide popular format for file storage and sharing on the Internet, how to organize your PDF files efficiently is a problem bothered many people, especially when you want to extract some specific pages from a PDF or several different PDFs and merge extract PDF files together. In this case, what you need is a professional PDF merger to merge PDF files to one PDF. This is a tutorial to teach you how to merge PDF files to a single PDF.
Step1. Download and run PDF Merge & Split
Click here to download PDF Merge & Split. And click icon 
on your desktop to launch the program.
Step2. Add PDF files and set method to merge PDF files
Select a PDF file imported, click “Merge Method” to choose which page to merge. You can extract specific page from any added PDF files and then all selected pages will be merged to one PDF.
Step3. Customize output settings.
At the below of the interface, you can type a new name and set output folder for merged PDF files. Click "Advanced setting" to customize security of output merged PDFs.
Step4. Merge extract PDF files to one PDF
Click the Merge button, and wait for several seconds, you will get a new extracted PDF as you want.
It's really easy to merge extract PDF files with a simple PDF merger. By the way, this application also supports to split a PDF if you need.
