Thought you might find this interesting: I have several password protected pdf files on my network which we long ago purchased and no one recalls the open password. So, I have had three machines running for two days to breck the code via brute force. Already eliminated password lengths of 1 – 6 for all combinations of A..Z, a..z, 0..9. Can run passwords at ~40,000 p/s (across one i7 and two old P4s) but when I hit length of 7, it will take ~ 6 months.


Now here is what is really scary, On another file, useing the dictionary option instead of “brute-force”, it found my personnal seven digit password in 5 secs. So I am now on a mission to revise my personal password to some crazy ass combination of upper lower characters and numbers...