More information about the PDF file
The PDF file format was designed to allow you to view and print files without needing the software that was used to create them. Adobe™ provides a free software utility (Acrobat Reader) that allows you to work with these files. If you have already installed this on your machine, you will usually find it filed under Programs in your Start Menu. Otherwise, follow the link below to download a copy.
Download Acrobat Reader from adobe.com