Skip to main content
A newer version of this page is available. .

Document Viewer


In v19.1, the ASP.NET Document Viewer has become deprecated. We recommend that you use the newer HTML5/JS Document Viewer instead. If you still want to use the deprecated Document Viewer, see documentation for v18.2.

The Web Document Viewer supports HTML5/JS and is used to display an interactive document preview in ASP.NET WebForms applications.

  • Quick Start

    Add a Document Viewer to an existing application or create a new one using the Project Wizard.

  • Mobile Mode

    Learn about the mobile Document Viewer mode for phones and tablets.

  • API and Customization

    Explore the Document Viewer’s customization options.

  • Localization

    Localize the Document Viewer’s UI.


The Document Viewer includes the following main features:

  • Asynchronous document building;
  • Pixel-perfect document rendering;
  • The multi-page mode enabling you to display an entire document;
  • A flexible client-side customization mechanism;
  • An application’s modern look and feel;
  • Support for in-place content editing.