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How to use the PDF viewer control in ASP.NET(Classic) platform?

Platform: WinForms |
Control: PdfViewer

We do not have support for the PDF viewer control in the ASP.NET(Classic). However, as a workaround we can use the ejPdfViewer control as in the below code snippet.


<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<script src="http://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery-easing/1.3/jquery.easing.min.js" type="text/javascript"></script>
    <link href="http://cdn.syncfusion.com/" rel="stylesheet" />
    <script type="text/javascript" src="http://cdn.syncfusion.com/ "></script>
    <!-- Creating a div tag which will act as a container for ejPdfViewer widget.-->
    <div id="viewer" style="height: 650px;width: 950px;min-height:404px;" ></div>
    <!-- initializing ejPdfViewer widget.-->
<script type="text/javascript">
    $(function () {
            serviceUrl: "/api/PdfViewerAPI"



public class PdfViewerAPIController : ApiController


    public object PostViewerAction(Dictionary<string, string> jsonResult)


        PdfViewerHelper helper = new PdfViewerHelper();



        object output = helper.ProcessPdf(jsonResult);

        string response = JsonConvert.SerializeObject(output);

        return response;




public class Helper


    public static string GetFilePath(string path)


        string _dataPath = GetCommonFolder(new DirectoryInfo(HttpContext.Current.Request.PhysicalApplicationPath));

        _dataPath += @"\" + path;

        return _dataPath;



    static string GetCommonFolder(DirectoryInfo dtInfo)


        var _folderNames = dtInfo.GetDirectories("Data");

        if (_folderNames.Length > 0)


            return _folderNames[0].FullName;



        return dtInfo.Parent != null ? GetCommonFolder(dtInfo.Parent) : string.Empty;







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Jul 02, 2018

I want to know the format of this parametre

Load(Dictionary<string, string> jsonResult)


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