Could I get in trouble for this?

I was looking around on the net and found a free download of the ATSG A-500/42RH manual. If I share this information in a public forum, will that get me into legal trouble? There are many more trans manuals and info there, but if this is copyright protected info, I don't want to get thrown in jail trying to help out my fellow automotive enthusiasts.

To be clear, I never put this info there, I just found it. Not sure if I'm even going to download it. Any thoughts?

Cley