There are any number of things that can interfere with a browsers ability to properly download and display the workbook pdfs. If you are having trouble with the pdfs you will need to download them to your computer.
To do this:
- Right click on the link to the pdf
- In Internet Explorer, choose 'Save Target As'
- In Firefox or Chrome, choose 'Save Link As'
- Once the file has downloaded, navigate to where you saved it and click on it.
- The pdf will open in Adobe Reader. You shouldn't have any trouble viewing or printing from here.