Go to the Modules tab on the Site in Portal and search or find Media Downloads. Then click install:
More on Installing and Managing Modules:
Go to the Module and create a new Item or edit any existing Items. You can also click view table to edit the Module itself:
Give the item a name, upload a file (typically PDFs) and give it a description (optional):
You can output a link to the file on a webpage by using Toolbox:
For full control over the design and functionality you can edit the Layouts:
For a full list of fields availabe check out our Reference guide: