How can I download and print protected PDF documents in Scribd?
If you are not authorized to download the material, we cannot tell you how to bypass these restrictions as it would be unlawful.
You can try this:
Go to m(dot)scribd(dot)com. It'll open the mobile version.
If you're lucky and the ebook you're looking for is "Available for mobile"(not sure what that means), you'll be able to download it with just one click!Hope this helps. Ciao!
from this article apparently internet download manager works?