How to add HTML checkbox, radiobutton, textbox in pdf using itextstarp?

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MVC

PDF

itextsharp

How to add html checkbox,radiobutton,textbox in pdf using itextstarp.Am using this code.

StringWriter stringWriter = new StringWriter(); MemoryStream stream = new 
      System.IO.MemoryStream();

        var viewData = ViewData;

        ViewEngineResult viewEngineResult = 
       ViewEngines.Engines.FindView(ControllerContext, "ABCDFORM", null);
        ViewContext viewContext = new ViewContext(ControllerContext, 
       viewEngineResult.View, viewData, new TempDataDictionary(), stringWriter);
        viewEngineResult.View.Render(viewContext, stringWriter);

        // Get the view HTML string
        string htmlToConvert = stringWriter.ToString();
        StringReader sr = new StringReader(htmlToConvert);

        Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 0f, 0f);
        PdfWriter writer = PdfWriter.GetInstance(pdfDoc, stream);
        pdfDoc.Open();

        XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, sr);
        pdfDoc.Close();

        string fileName = DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss");

        return File(stream.ToArray(), "application/pdf", string.Format("{0}.pdf", 
       fileName));

In ABCDFORM is a my view,I am working on MVC.and am create ABCDFORM as html
file.

I need add html checkbox,radiobutton in pdf.

What I have tried:

I tried to add checkbox,radiobutton in pdf using itextsharp.