How to track my PDFs or other file types on my website?

If you are looking to keep track of certain files that are being downloaded from your site

Here is documentation on how to track clicks by file type:

http://documentation.ektron.com/cms400/v9.00/Reference/Web/EktronReferenceWeb.html#Content/Analytics.htm?Highlight=xfunction

Information on Google Analytics Download Tracking: 
https://developer.ektron.com/forums/?v=t&t=1447