How to Make watermarks in paper for security
Don't fret too much if your watermark is barely noticeable when you're finished with this project - the less obvious it is, the better a job you've done. Watermarkers are present in many types of paper, especially the monetary kind. If you hold up a ten dollar bill you'll see a watermark of Thomas Jefferson's face on the right, proving the bill is real.
Make your own watermark by watching this interesting tutorial, and put it in paper documents of importance to claim ownership.