All of the official forms and publications on this site are in PDF format. To view these forms, you need to use the Acrobat Reader made by Adobe.
If you don't have the Acrobat reader from Adobe, you need it, and it's free. These links will take you to Adobe's website, choose your operating system:
Why do we use PDF files? Because PDFs are the only way of ensuring that what we post will actually print properly. :)