encyclo - 12:20 am on Dec 9, 2006 (gmt 0)

Example: Installation Information [webmasterworld.com] (PDF)

One minor issue with your excellent tip - screenreaders often offer a function to read out just a list of links on the page rather than the whole page text. This provides a useful shortcut for users trying to navigate through the site quickly. It is good practice therefore to specify that the link is to a PDF file within the anchor text itself, not just beside the link.

Example:

Installation Information (PDF) [webmasterworld.com]