This quote is taken from www.adobe.com, the developers of the PDF format:

PDF is a universal file format that preserves the fonts, images, graphics, and layout of any source document, regardless of the application and platform used to create it. Adobe® PDF files are compact and complete, and can be shared, viewed, and printed by anyone with free Adobe Reader® software.

 

You may click on this link: Adobe® Acrobat® Reader® and follow directions after that to obtain the free software that lets you view and print Adobe Portable Document Format (PDF) files