What we have here is all the Calvin and Hobbes comics from 1985 to 1995. Unfortunately though, it doesn't have the special comics that were made specifically for the treasuries or the explanations from the 10th Anniversary Book. The comics themselves are also a little low quality. But besides that, they're all here for you to download for free. Here you all go.
http://tao-cs.net/dasylva/The%20Complete%20Calvin%20and%20Hobbes.pdf
