Depending on the number of events you would like to track, or the level of control you would like to have on the tracking parameters for your events, you can setup up auto event tracking, or manually tag links on your website.
If you have lots of documents and page elements to track it is worth using auto event tagging. This can be done using Google Tag Manager. Auto event tagging will fire on the following:
- When users click on links.
- Clicks on any type of page element.
- After a certain visit duration or at timed intervals.
- On submission of a form.