Hi, I am using Acrobat 9 Pro in the office and I have been using it to create protected PDF files with restriction to copy text content. It has been working well when accessing pdf from desktops but I found the text can still be copied when it accessed from mobile.
Can you let me know if there is any extra setting that I should make, or if this is a bug?
What mobile PDF viewer are you using, exactly? If it's Adobe Reader, then it could be a bug. Non-Adobe viewers are not obligated to honor any restrictions that may be present, but they should if they aim to be compliant with the spec.
thank you all. I was not the first person using the software on this machine so I might have missed that disclaimer. Yes I tried adobe reader on my phone and it is also restricting me from copying. And I find that it seems to fail on iOS browsers only, I tried several Android OS readers, all working as well..