>We have only copied and pasted word files so far.
If you have added Word files to your site then I would guess you can add pdf files using the same method (copy and paste?)
Personally I dont think it is a good idea to add Word files to a web site, for three main reasons.
1) The files are rather large and can take a long time to download. PDF files are smaller
2) Not everyone has Word and it is going to be annoying for those people without Word to get one of these file.
3) Word files can be changed, which you may not want people to do. It is a lot harder to change PDF files.
It is very easy to convert a Word document to a PDF file usng a free converter. Then anyone can download the free PDF viewer to see them.
Here is a free product that will convert Word into PDF format very easily.
http://www.pdf995.com/