# Document Viewer 33.2.1 Released: New Event and Bug Fixes

> This service pack includes important bug fixes and improvements to enhance the stability and performance of the Document Viewer. In addition, a new event has been introduced to provide developers with greater control and flexibility during document handling.

- **Author:** Bjoern Meyer
- **Published:** 2025-07-30
- **Modified:** 2025-11-16
- **Description:** This service pack includes important bug fixes and improvements to enhance the stability and performance of the Document Viewer. In addition, a new event has been introduced to provide developers with greater control and flexibility during document handling.
- **2 min read** (258 words)
- **Tags:**
  - ASP.NET
  - ASP.NET Core
  - Document Viewer
  - Release
- **Web URL:** https://www.textcontrol.com/blog/2025/07/30/document-viewer-33-2-1-released-new-event-and-bug-fixes/
- **LLMs URL:** https://www.textcontrol.com/blog/2025/07/30/document-viewer-33-2-1-released-new-event-and-bug-fixes/llms.txt
- **LLMs-Full URL:** https://www.textcontrol.com/blog/2025/07/30/document-viewer-33-2-1-released-new-event-and-bug-fixes/llms-full.txt

---

We have just released a new package version of the TX Text Control MVC DocumentViewer for ASP.NET and ASP.NET Core web applications.

- **TXTextControl.Web.DocumentViewer 33.1.1**  
    <https://www.nuget.org/packages/TXTextControl.Web.DocumentViewer/33.2.1>

### Updating the Package

To update the NuGet package, open the *NuGet Package Manager*, select *nuget.org* as the package source, select *Installed* and locate the *TXTextControl.Web.DocumentViewer* package. From the *Versions* drop-down list, select the latest stable version (33.2.1).

### Fixed Issues

Version 33.2.1 includes both new features and fixes for known issues. The below tables lists all fixed known issues.

| ID | Description | Status |
|---|---|---|
| MVCDV-238 | NullReferenceException when clicking on Print button | Fixed in 33.2.1 |
| MVCDV-237 | Zoom in and zoom out icons not disabling after max limit reached | Fixed in 33.2.1 |
| MVCDV-233 | Displaced menu when toolbar is not docked | Fixed in 33.2.1 |
| MVCDV-236 | Zoom drop-down list doesn't close on click | Fixed in 33.2.1 |
| MVCDV-239 | Thumbnail preview icon is not selected when preview is active | Fixed in 33.2.1 |

### New Features

The Document Viewer receives new features outside of the TX Text Control major release cycle. This means that minor release numbers also contain new features, improvements and bug fixes.

- **zoomChanged Event**  
    The zoom level of the document viewer can now be monitored using the new zoomChanged event. This allows developers to respond to zoom level changes and implement custom behavior based on the current zoom level.
    
    To use the zoomChanged event, you can subscribe to it in your JavaScript code as follows:
    
    ```
    TXDocumentViewer.addEventListener("zoomChanged", (event) => {
        console.log(event.newValue);
    });
    ```
    
    This will write the current zoom level to the console whenever the zoom level changes.
    
    ```
    1.6
    ```

---

## About Bjoern Meyer

As CEO, Bjoern is the visionary behind our strategic direction and business development, bridging the gap between our customers and engineering teams. His deep passion for coding and web technologies drives the creation of innovative products. If you're at a tech conference, be sure to stop by our booth - you'll most likely meet Bjoern in person. With an advanced graduate degree (Dipl. Inf.) in Computer Science, specializing in AI, from the University of Bremen, Bjoern brings significant expertise to his role. In his spare time, Bjoern enjoys running, paragliding, mountain biking, and playing the piano.

- [LinkedIn](https://www.linkedin.com/in/bjoernmeyer/)
- [X](https://x.com/txbjoern)
- [GitHub](https://github.com/bjoerntx)

---

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