title: jsPDF - include other pdf
body: <p>I'm trying to solve such problem with jsPDF: </p>
  
  <p>I have PDF file, which is stored on server. I'm generating another pdf with jsPDF and trying to append to already existed pdf file (as I mentioned above) as a another page. </p>
  
  <p>I googled about it, but can't find any help. Also I found this question on stackoverflow, but it is different scenario - 
  <a href="https://stackoverflow.com/questions/46891411/append-existing-pdf-to-jspdf">Append Existing Pdf to Jspdf</a></p>
  
  <p>How can I make this to work?
  Or is any other plugin or something else to make this?</p>