A 'pdf' file
gives you the document as it was printed on paper, with layout and
pictures, instead of the web page version.
To read a pdf
file, you need Adobe Acrobat Reader, a free program which you can
download from the Adobe web site.
Once downloaded
and installed, Acrobat Reader will work with your web browser so
that you can read pdf files on the web. You can also use the Reader
to save pdf files on your computer.
