A major component of this web site is access to documents. Most of the documents are in PDF format. The term "PDF" should be in the title of the link to the file.
Different web browser software handles this type of file in different manners.
Your browser may display the PDF file within the browser. Some browsers are not configured to display the file and will download it, generally into the "Downloads" folder.
If your browser displays the file and you want to save it to your computer, you can generally right-click (Control-click on a Macintosh) and select the option to save the page.
To shortcut this approach, right-click (Control-click on a Macintosh) on the link to the file and select the option to save the linked file.