# Class (PdfData)

Implements the output data stream class of **createPdf()**.

> **NOTE**
>
> - The initial APIs of this module are supported since API version 9. Updates will be marked with a superscript to indicate their earliest API version.
>
> - The initial APIs of this class are supported since API version 14.
>
> - You can preview how this component looks on a real device, but not in DevEco Studio Previewer.
>
> - When a PDF file is generated on a web page, a data stream is returned, which is encapsulated by the **PdfData** class.

## pdfArrayBuffer<sup>14+</sup>

pdfArrayBuffer(): Uint8Array

Obtains the data stream generated by a web page. For details about the sample code, see [createPdf](./arkts-apis-webview-WebviewController.md#createpdf14).

**System capability**: SystemCapability.Web.Webview.Core

**Return value**

| Type      | Description    |
| ---------- | -------- |
| Uint8Array | Data stream.|