Create a blank ASP.NET WebForms application.

Server side: Add references to the Vintasoft assemblies to ASP.NET WebForms application.

Server side: Specify drawing engine, which should be used by VintaSoft Imaging .NET SDK for drawing of 2D graphics.

• Add reference to the Vintasoft.Imaging.Gdi.dll assembly.
  
• Open "Default.aspx.cs" file, add code line "Vintasoft.Imaging.Drawing.Gdi.GdiGraphicsFactory.SetAsDefault();" at the beginning of Page_Load method - added code specifies that VintaSoft Imaging .NET SDK should use System.Drawing library for drawing of 2D graphics.

Server side: Create web services, which allow to upload/download file, manage image collection, get information about images, get thumbnails, render image tiles, extract/search text and annotate document.

• Add the "Handlers" folder to ASP.NET WebForms application.

• Create web service that allows to upload/download file

  • Press the right mouse button on the "Handlers" folder and select the "Add => Generic handler" menu from context menu
    
  • Specify the handler name "MyVintasoftFileHandler" and press the "Ok" button
  • Specify that MyVintasoftFileHandler class is derived from VintasoftImaging.Web.HttpHandlers.VintasoftFileHandler class
    
    Here are C# source codes of MyVintasoftFileHandler class:
    
    • C#

    namespace WebApplication1.Handlers
    {
        public class MyVintasoftFileHandler : Vintasoft.Imaging.Web.HttpHandlers.VintasoftFileHandler
        {
        }
    }
    
    

• Create web service that allows to manage image collection

  • Press the right mouse button on the "Handlers" folder and select the "Add => Generic handler" menu from context menu
    
  • Specify the handler name "MyVintasoftImageCollectionHandler" and press the "Ok" button
  • Specify that MyVintasoftImageCollectionHandler class is derived from VintasoftImaging.Web.HttpHandlers.VintasoftImageCollectionHandler class
    
    Here are C# source codes of MyVintasoftImageCollectionHandler class:
    
    • C#

    namespace WebApplication1.Handlers
    {
        public class MyVintasoftImageCollectionHandler : Vintasoft.Imaging.Web.HttpHandlers.VintasoftImageCollectionHandler
        {
        }
    }
    
    

• Create web service that allows to get information about images, get thumbnails, render image tiles, extract/search text

  • Press the right mouse button on the "Handlers" folder and select the "Add => Generic handler" menu from context menu
    
  • Specify the handler name "MyVintasoftImageHandler" and press the "Ok" button
  • Specify that MyVintasoftImageHandler class is derived from VintasoftImaging.Web.HttpHandlers.VintasoftImageHandler class
    
    Here are C# source codes of MyVintasoftImageHandler class:
    
    • C#

    namespace WebApplication1.Handlers
    {
        public class MyVintasoftImageHandler : Vintasoft.Imaging.Web.HttpHandlers.VintasoftImageHandler
        {
        }
    }
    
    

• Create web service that allows to annotate images and documents

  • Press the right mouse button on the "Handlers" folder and select the "Add => Generic handler" menu from context menu
    
  • Specify the handler name "MyVintasoftAnnotationCollectionHandler" and press the "Ok" button
  • Specify that MyVintasoftAnnotationCollectionHandler class is derived from VintasoftImaging.Annotation.Web.HttpHandlers.VintasoftAnnotationCollectionHandler class
    
    Here are C# source codes of MyVintasoftFileHandler class:
    
    • C#

    namespace WebApplication1.Handlers
    {
        public class MyVintasoftAnnotationCollectionHandler :
            Vintasoft.Imaging.Annotation.Web.HttpHandlers.VintasoftAnnotationCollectionHandler
        {
        }
    }
    
    

Client side: Add JavaScript libraries to the project.

• Add the "Scripts\" folder to ASP.NET WebForms application if folder does not exist.
  
  
• Copy Vintasoft.Shared.js, Vintasoft.Imaging.js, Vintasoft.Imaging.css, Vintasoft.Imaging.Annotation.js, Vintasoft.Imaging.Annotation.css and Vintasoft.Imaging.DocumentViewer.js files from "<InstallPath>\VintaSoft Imaging .NET 14.0\Bin\JavaScript\" folder into "Scripts\" folder.
  
  
• Specify, which "standard" dialogs (password dialog, print dialog, etc) should be used by web document viewer
  • If web document viewer should use ready-to-use "standard" jQuery UI dialogs:
    • Copy jQuery file into "Scripts\" folder.
      You can use "jquery-3.3.1.min.js" file from "<InstallPath>\VintaSoft Imaging .NET 14.0\Examples\ASP.NET MVC\CSharp\AspNetMvcImagingDemo\Scripts\External\" folder or jQuery file from any other source.
    • Copy jQuery UI files and folders into "Scripts\" folder.
      You can use "jquery-ui.min.js" file and "jquery-ui-css" folder from "<InstallPath>\VintaSoft Imaging .NET 14.0\Examples\ASP.NET MVC\CSharp\AspNetMvcImagingDemo\Scripts\External\" folder or jQuery UI files and folders from any other source.
    • Copy Vintasoft.Imaging.Dialogs.jQueryUI.js and Vintasoft.Imaging.DocumentViewer.Dialogs.jQueryUI.js files from "<InstallPath>\VintaSoft Imaging .NET 14.0\Bin\JavaScript\" folder into "Scripts\" folder.
      
      
  • If web document viewer should use custom "standard" dialogs, please read how to create custom "standard" dialogs here.

Client side: Add JavaScript code, which initializes and dispalys document viewer, to the Default web form.

• Create folder "UploadedImageFiles\SessionID" and copy PDF document "<InstallPath>VintaSoft\Imaging .NET 14.0\Images\VintasoftImagingDemo.pdf" to the folder. This document will be displayed in document viewer.
  
  
• Create the Default web form - file "Default.aspx".
  • Press the right mouse button on the project and select the "Add => WebForm" menu from context menu:
    
    
    
  • Specify "Default" as web form name => created web form will be opened:
    
  
  
• Add references to the JavaScript files:
  
  Here is HTML code that adds references to jQuery and Vintasoft JavaScript files:
  
  • HTML

  <style>
      * {
          -webkit-box-sizing: border-box;
          box-sizing: border-box;
          border-collapse: collapse;
      }
  </style>
  
  <link rel="stylesheet" type="text/css" href="Scripts/jquery-ui-css/jquery-ui.min.css">
  <link rel="stylesheet" type="text/css" href="Scripts/Vintasoft.Imaging.css">
  <link rel="stylesheet" type="text/css" href="Scripts/Vintasoft.Imaging.Annotation.css">
  
  <script src="Scripts/jquery-3.3.1.min.js" type="text/javascript"></script>
  <script src="Scripts/jquery-ui.min.js" type="text/javascript"></script>
  
  <script src="Scripts/Vintasoft.Shared.js" type="text/javascript"></script>
  <script src="Scripts/Vintasoft.Imaging.js" type="text/javascript"></script>
  <script src="Scripts/Vintasoft.Imaging.Dialogs.jQueryUI.js" type="text/javascript"></script>
  <script src="Scripts/Vintasoft.Imaging.Annotation.js" type="text/javascript"></script>
  <script src="Scripts/Vintasoft.Imaging.Annotation.Dialogs.jQueryUI.js" type="text/javascript"></script>
  <script src="Scripts/Vintasoft.Imaging.DocumentViewer.js" type="text/javascript"></script>
  <script src="Scripts/Vintasoft.Imaging.DocumentViewer.Dialogs.jQueryUI.js" type="text/javascript"></script>
  

  
  
  
• Add HTML markup (a div-element that will display document viewer) to the web view:
  
  Here is HTML markup code:
  
  • HTML

  <form id="form1" runat="server">
      <h1 style="text-align: center">VintaSoft Document Viewer Demo (ASP.NET WebForms)</h1>
      <div id="documentViewerContainer" style="height: 800px"></div>
  </form>
  

  
  
  
• Add JavaScript code that displays document viewer:
  
  Here is JavaScript code (with page markup) that displays document viewer:
  
  • JavaScript

  <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1.Default" %>
  
  <!DOCTYPE html>
  
  <html xmlns="http://www.w3.org/1999/xhtml">
  <head runat="server">
      <title>VintaSoft Document Viewer Demo (ASP.NET WebForms)</title>
  
      <style>
          * {
              -webkit-box-sizing: border-box;
              box-sizing: border-box;
              border-collapse: collapse;
          }
      </style>
  
      <link rel="stylesheet" type="text/css" href="Scripts/jquery-ui-css/jquery-ui.min.css">
      <link rel="stylesheet" type="text/css" href="Scripts/Vintasoft.Imaging.css">
      <link rel="stylesheet" type="text/css" href="Scripts/Vintasoft.Imaging.Annotation.css">
  
      <script src="Scripts/jquery-3.3.1.min.js" type="text/javascript"></script>
      <script src="Scripts/jquery-ui.min.js" type="text/javascript"></script>
  
      <script src="Scripts/Vintasoft.Shared.js" type="text/javascript"></script>
      <script src="Scripts/Vintasoft.Imaging.js" type="text/javascript"></script>
      <script src="Scripts/Vintasoft.Imaging.Dialogs.jQueryUI.js" type="text/javascript"></script>
      <script src="Scripts/Vintasoft.Imaging.Annotation.js" type="text/javascript"></script>
      <script src="Scripts/Vintasoft.Imaging.Annotation.Dialogs.jQueryUI.js" type="text/javascript"></script>
      <script src="Scripts/Vintasoft.Imaging.DocumentViewer.js" type="text/javascript"></script>
      <script src="Scripts/Vintasoft.Imaging.DocumentViewer.Dialogs.jQueryUI.js" type="text/javascript"></script>
  </head>
  <body>
      <form id="form1" runat="server">
          <h1 style="text-align: center">VintaSoft Document Viewer Demo (ASP.NET WebForms)</h1>
          <div id="documentViewerContainer" style="height: 800px"></div>
      </form>
  
      <script type="text/javascript">
          // set the session identifier
          Vintasoft.Shared.WebImagingEnviromentJS.set_SessionId("SessionID");
  
          // specify web services, which should be used by Vintasoft Web Document Viewer
          Vintasoft.Shared.WebServiceJS.defaultFileService =
              new Vintasoft.Shared.WebServiceHandlerJS("/Handlers/MyVintasoftFileHandler.ashx");
          Vintasoft.Shared.WebServiceJS.defaultImageCollectionService =
              new Vintasoft.Shared.WebServiceHandlerJS("/Handlers/MyVintasoftImageCollectionHandler.ashx");
          Vintasoft.Shared.WebServiceJS.defaultImageService =
              new Vintasoft.Shared.WebServiceHandlerJS("/Handlers/MyVintasoftImageHandler.ashx");
          Vintasoft.Shared.WebServiceJS.defaultAnnotationService =
              new Vintasoft.Shared.WebServiceHandlerJS("/Handlers/MyVintasoftAnnotationCollectionHandler.ashx");
  
          // create settings for document viewer with annotation support
          let docViewerSettings =
              new Vintasoft.Imaging.DocumentViewer.WebDocumentViewerSettingsJS("documentViewerContainer", { annotations: true });
  
          // get items of document viewer
          var items = docViewerSettings.get_Items();
  
          // get the main menu of document viewer
          var mainMenu = items.getItemByRegisteredId("mainMenu");
          // if main menu is found
          if (mainMenu != null) {
              // get items of main menu
              let mainMenuItems = mainMenu.get_Items();
  
              // add "Annotation" menu panel to the main menu
              mainMenuItems.addItem("annotationsMenuPanel");
          }
  
          // get side panel of document viewer
          var sidePanel = items.getItemByRegisteredId("sidePanel");
          // if side panel is found
          if (sidePanel != null) {
              // get items of side panel
              var sidePanelItems = sidePanel.get_PanelsCollection();
  
              // add "Annotations" panel to the side panel
              sidePanelItems.addItem("annotationsPanel");
  
              // add "Text selection" panel to the side panel
              sidePanelItems.addItem("textSelectionPanel");
  
              // add "Text searh" panel to the side panel
              sidePanelItems.addItem("textSearchPanel");
          }
  
          // create the document viewer
          var docViewer = new Vintasoft.Imaging.DocumentViewer.WebDocumentViewerJS(docViewerSettings);
  
          // create visual tool that allows to work with annotations, navigate document and select text
          var annotationNavigationTextSelectionTool =
              docViewer.getVisualToolById("AnnotationVisualTool,DocumentNavigationTool,TextSelectionTool");
          // specify visual tool as mandatory visual tool of document viewer
          docViewer.set_MandatoryVisualTool(annotationNavigationTextSelectionTool);
          // specify visual tool as current visual tool of document viewer
          docViewer.set_CurrentVisualTool(annotationNavigationTextSelectionTool);
  
          // open file from session folder and add images from file to the image viewer
          docViewer.openFile("VintasoftImagingDemo.pdf");
      </script>
  </body>
  </html>
  

Run the ASP.NET WebForms application and see the result.