Some courses are presented in pdf (portable document format) files.
This provides the equivalent of a printed document that is visible on all computers.
You will need to install Adobe Acrobat Reader (click here to download) on your computer if it is not already installed.
When you access course content in a pdf file, it will download to your computer.
You may select where that file is saved.
Then you may read the material on your screen through Acrobat Reader or you may print it to read in hard copy.