Hi Vishakha, I have encountered the protection failure message before. You need to decrypt the PDF file using a utility like Advanced PDF Password Recovery from Elcomsoft. http://www.elcomsoft.com/apdfpr.html
I cannot comment on the legality of this procedure but Advanced PDF Password Recovery is a legitimate application. Pranav To unsubscribe send a message to accessindia-requ...@accessindia.org.in with the subject unsubscribe. To change your subscription to digest mode or make any other changes, please visit the list home page at http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in