How do I let my users view a PDF file?
Its a good idea to include a link to let them download the PDF reader if they don't have it, something like this:
<a href="abc.pdf">abc.pdf file</a><br> <a href="http://www.adobe.com/products /acrobat/readstep2.html" target="_blank"> Download the free Acrobat Reader here if you do not have it</a>
It's polite to state the file format and the file size (particularly for files over 100K).