title: Watermark using pdfmake
body: <p>In Javascript, I am using pdfmake to generate a pdf document. I read it from github that it supports watermark and the following is my usage but it is giving me some random and weird characters. Those characters are the same no matter what texts are provided in watermark. Anyone got an idea?</p>
  
  <p><a href="http://bpampuch.github.io/pdfmake" rel="nofollow noreferrer">pdfmake</a></p>
  
  <p><a href="https://i.stack.imgur.com/8vDFB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8vDFB.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/WmReB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WmReB.png" alt="enter image description here"></a></p>