The first step to using documents on your web page is to upload the files to the site. For help with this please visit How do I upload documents to be used on my website?.
Once you have uploaded and published your files, you can use your documents as if they are additional pages in the site. This means you will need to insert links to navigate to the pages. You will be linking to documents, whether it is a .pdf, .doc, or .ppt, in the same way you link to web pages. For help with this please visit How do I add a link?.
Below is an example web page where you might wish to use documents. It is a resources page that contains links to additional websites and important documents. If a user clicks on the first link, the page will redirect to the .pdf.
When a person clicks a link in the list, the page will redirect to the appropriate location, which may be another web page or it could be a document. Below is an example of how a .pdf document would appear.