Hello KM,
I'm assuming you're using MS Office/Word, correct?
You can download and install this; Link Removed - Invalid URL
Create your doc in MS Word, then open the file in Open Office Writer and use the Export to PDF option, which has all those neat security options.
I'm pretty sure that's how it's supposed to work, I've only ever used Open Office, so I may have missed a step or 2.
Bottom line is, Open Office has the security options you're looking for and it is free.
Hope this helps
Don