You can with the News article Module add files that may be related your articles. To do so when your creating your article, when you reach Files portion of the administration page (just below the Text Editor), expand that control.

You will now see (indicated by the arrows) two ways to attach files. You can upload new files, use existing files from your website.


After the files have been uploaded, the file titles can be changed , or the order in which they'll be displayed can be altered, by using the up and down icons.