title: Rotative CustomSwitches does not work
body: <p>I'm using Rotativa.MVC 2.0.3 in my MVC5 project.  I keep getting an error in the code editor stating "ActionAsPDF does not contain a definition for CustomSwitches".  I tried using ViewAsPDF as shown in the links below also, same result.
  Here are a couple of sources I found regarding how to add headers/footers to Rotativa PDFs:</p>
  
  <p><a href="http://www.codeproject.com/Articles/1006319/Using-Rotativa-in-MVC-Application" rel="nofollow">CodeProject</a></p>
  
  <p><a href="http://www.c-sharpcorner.com/UploadFile/0ef46a/using-rotativa-in-mvc-application/" rel="nofollow">CSharpCorner</a></p>
  
  <p>The code in my controller is:</p>
  
  <pre><code>using Rotativa.MVC;
  
  public ActionResult CertificatePDF(int? wo_nbr)
  {
      var PDFresult = new ActionAsPdf("Certificate", new { wo_nbr = wo_nbr })
      {
          FileName = "Certificate.PDF",
          CustomSwitches = "fill in details later"
      };
      return PDFresult;
  }
  </code></pre>
  
  <p>So the question is:  How do I implement CustomSwitches in Rotativa 2.0.3?  Or, where is the CustomSwitches definition?  The PDF renders terrifically without the CustomSwitches tag, so I know Rotativa is doing it's job.</p>