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How to silent print the PDF document from WCF service

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You can silent print the PDF document sent from the WCF service using PDF viewer Windows forms (Syncfusion.PdfViewer.Windows ) reference in web project. Refer to the following code.


  public object CreatePDF()
            PdfDocument document = new PdfDocument();
            //Add a page to the document
            PdfPage page = document.Pages.Add();
            //Create PDF graphics for the page
            PdfGraphics graphics = page.Graphics;
            //Set the standard font
            PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 20);
            //Draw the text
            graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
            //Save the document
            MemoryStream ms = new MemoryStream();
            string base64 = Convert.ToBase64String(ms.ToArray());
            return base64;


Code to send data to silent print the PDF document from client side of the web project.

            url: "http://localhost:12263/pdfviewer.asmx/CreatePDF",
            type: 'POST',
            crossDomain: true,
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
            traditional: true,
            success: function (data) {
                var jsonResult = new Object();
                jsonResult["base64"] = data["d"];
                    url: "../api/PdfViewer/PdfViewerPrint",
                    type: 'POST',
                    contentType: 'application/json; charset=utf-8',
                    dataType: 'json',
                    data: JSON.stringify(jsonResult),
                    crossDomain: true,
                    traditional: true,
                    success: function () {
                        var div = document.getElementById('result');
                        div.innerHTML += 'PDF document is printed';                       


Code to silent print the PDF document using windows reference in Web API controller.

public void PdfViewerPrint(Dictionary<string, string> jsonResult)
            //Initializes the PDF viewer      
            PdfViewerControl viewer = new PdfViewerControl();
            //Loading the document in PDF viewer control
            if (jsonResult.ContainsKey("base64"))
                var data = jsonResult["base64"];
                byte[] byteArray = Convert.FromBase64String(data);
                MemoryStream stream = new MemoryStream(byteArray);
                //Initializes the print dialog box
                PrintDialog dialog = new PrintDialog();
                dialog.AllowPrintToFile = true;
                //Sets the PDF viewer print document to PrintDialog's document
                dialog.Document = viewer.PrintDocument;
                //Prints the PDF document


WCF Service: JavaScript sample:


  • Run the WCF service or host the service in IIS and provide the URL of the service to Ajax request URL.
  • Then, run the web project to silent print the PDF document.
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