Document document = CreateDocument();
        document.UseCmykColor = true;
        const bool unicode = false;
        const PdfFontEmbedding embedding = PdfFontEmbedding.Always;
        PdfDocumentRenderer pdfRenderer = new PdfDocumentRenderer(unicode, embedding);
        pdfRenderer.Document = document;
        pdfRenderer.RenderDocument();
   
        const string filename = "HelloWorld.pdf";
        Response.ContentType = "application/pdf";
        StreamWriter s = new StreamWriter(Response.OutputStream);
        MemoryStream stream = new MemoryStream();
        Response.AddHeader("Content-Disposition", filename);
        pdfRenderer.PdfDocument.Save(stream, true);
        s.Write(stream);
        Response.Flush();
        Response.Close();