# Javascript: DocumentViewerController.toggleFullScreen Method

> Toggles browser fullscreen, or toggles window docking when fullscreen is unavailable.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 24.0
- **Path:** DS Server > Reference > JavaScript API - Document Viewer > Javascript: DocumentViewerController.toggleFullScreen Method
- **155 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/togglefullscreen-method/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/togglefullscreen-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/togglefullscreen-method/llms-full.txt

---

### Description

Toggles browser fullscreen, or toggles window docking when fullscreen is unavailable.

### Syntax

```javascript
<void> DocumentViewerController.toggleFullScreen()
```

### Return Value

This method does not return a value.

### Examples

The following example demonstrates `TXDocumentViewer.toggleFullScreen` in a practical Document Viewer workflow. Toggles between the browser full screen mode and the normal docked mode of the DocumentViewer.

```javascript
TXDocumentViewer.toggleFullScreen();
console.log("toggle full screen requested.");
```

---

## Nearby

- **Previous:** [Javascript: DocumentViewerController.suspend Method](https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/suspend-method/llms-full.txt)
- **Next:** [Javascript: DocumentViewerController.toggleSelection Method](https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/toggleselection-method/llms-full.txt)