They protected their rights and we can't tell how to get around copy protections here.
-> Again, go back to the source or author for support.
I purchased a protected pdf file. I used the file in my notebook. I could read it but could not print more than 20 pages per month.
However, few months ago, I reformat the harddish because I was bothered by the adware. Now I cannot read the pdf again.
What can I do to read the file again? Adobe cannot even remember my email address!