# API for creating and modifying image data.
## Content
DsImageViewer allows you to create new or modify existing images using the following client API:
```
// Create empty image.
async newImage(options?: { width?: number; height?: number })
// Get unmodified image data url.
public getOriginalImageDataUrl(): string
// Get current image data url.
public getImageDataUrl(): string
// Modify current image data url.
public setImageDataUrl(dataUrl): Promise
// Download the Image document loaded in the Viewer to the local disk.
public download(fileName?: string, getInitialVersion?: boolean)
```
These examples show how to use the client API to create or modify images:
* [Create new image](modify-image-data/paint-new-image)
* [Draw on an existing image](modify-image-data/modify-image)
### Limitations
* Modification of vector or multi-frame images (SVG, GIF, ICO, TIFF) is not supported.
* Only static images can be modified.