You will need a copy of Adobe Acrobat® or Acrobat Reader® to read and print the files. Acrobat Reader is free from Adobe. Your computer probably has a copy installed, but if not, you can download a free copy of Acrobat Reader here. Depending on your browser setup, you may have to right-click (or control-click, Mac) on the title of the manual desired. Most of the pdf files run between 150 KB and 500 KB.