Adobe Acrobat can do that. It is one of the options under encryption. Check box whether you want a password to open or not. Other check boxes whether to allow printing, changing, or even screen copies (although that one is easy to subvert)
http://wwwimages.adobe.com/www.adobe.com/content/dam/Adobe/en/products/acrobat/pdfs/adobe-acrobat-xi-protect-pdf-file-with-permissions-tutorial-ue.pdf Kevin On Fri, Jun 7, 2013 at 2:33 PM, 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 > > >

