Attaching files to pages
You may want to attach files directly to pages when, for example, your site is set up to list files attached to pages on a page. If you want to upload larger files, such as videos, to the system, media libraries are usually a better choice.
An advantage of page attachments is that you can attach files related to a page directly to the page. This means that they also stay with the page when you are moving the page elsewhere.
To attach a file to a page
Open the Pages application.
Navigate to the page to which you want to attach a file.
Switch to the Properties -> Attachments tab.
Click on New attachment. A dialog window opens.
Choose the file that you want to attach to the page.
Click on Open.
The system uploads the file to the page.