I've get back a pdf from my client with comments and while I open it in all reader versions it alerts like
"This document contained certain rights to enable special features in adobe reader. The document has been changed since it was created and these rights are no longer valid. Please contact the author for the original version of this document."
and further we cant able to insert comments. So I just again created a pdf and tried. But I dont get any alerts.
wat could be the problem? how to rectify it or prevent?
Make sure that the document doesn't change when you transfer the document.
Actually client reported that "first time we can able to add comments and save. but after that throws an alert like that and not able to add comments".