What I would like to know is how can I fix the stamp in PDF and do not make people could paste/steel it.
I am going to explain the situation.
I have find sevelral ways but there is a problem for each way..
First is setting a stamp properties as LOCKED. But, it could be un-locked by changing the properties..
Second, the stamp can be fixed by printed out as Adobe PDF..but, when I copy the image in PDF file and then paste it in other from (MS office/ word, excel..and so on), I can easily get an image.
Is there any other way to fix the stamp and do avoid not to pirate the stamp?
No, there is nothing you can do. However you protected the file, people could capture the screen. If screen capture could be stopped, they could photograph. Nothing you can do.
Stamps are of absolutely no value in proving authenticity; for that we use digital signatures.
Intellectual property, if that is your concern, can and will be stolen. This is the world we live in.