Help with Microsoft Word (MS Word questions)

I have recently paid out a large sum of money for the preparation of a 90 page risk assesment document and I would ideally like to email it as an attachment to my customers but I don't want anyone copying it and using it for theirselves.
Is there a way of securing the document so that it cannot be copied other than by typing it out again word for word.
I was also thinking of something like a watermark on each page to identlfy it's source.

I was asked to make one of these "risk assessments" once. And rather than hire the people who do it for a living (which you seem to have done), I was told to just go find other people's and copy what they did.