No, there is not that I'm aware of.. However, since you're concerned mainly about editing, and not about sharing (or so it seems from your email), perhaps you could attach a signature to the PDF to show that it's not been tampered with.
That is, generate the PDF, generate a MD5 or SHA1 hash for the PDF as a separate text file, then send both, and let the email recipient know that if they receive it and the hash doesn't match, that the PDF will be known to have been changed. before they got it. Of course, the unstated implication is that if it reaches any other hands after your correspondents have received it (yours, for instance), and the hash doesn't match, well, someone's been naughty... Kurt On Fri, Jun 7, 2013 at 11:33 AM, Roger Wright <[email protected]> wrote: > Our company sends out PDF reports to clients, primarily via email. > Questions have come up regarding the security of these reports once they are > in the hands of recipients. I know we can use passwords to prevent editing > but passwords create their own challenges due to typos, sharing, former > employees, etc. > > Fortunately, we're not dealing with regulatory compliance issues but are > concerned since reports contain verbiage and signatures that, if modified > and/or copied for nefarious reasons, my create legal issues. We're not so > concerned about preventing internal editing as much as preventing external > recipients from possibly editing said documents. > > Is there a practical method or system that would lock a file for editing one > the recipient has opened it without requiring a password? > > > Roger Wright > ___ > > "You can't believe most of the quotes you read on the internet." - Abraham > Lincoln > > >
