1# Class (PdfData) 2 3Implements the output data stream class of **createPdf()**. 4 5> **NOTE** 6> 7> - 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. 8> 9> - The initial APIs of this class are supported since API version 14. 10> 11> - You can preview how this component looks on a real device, but not in DevEco Studio Previewer. 12> 13> - When a PDF file is generated on a web page, a data stream is returned, which is encapsulated by the **PdfData** class. 14 15## pdfArrayBuffer<sup>14+</sup> 16 17pdfArrayBuffer(): Uint8Array 18 19Obtains the data stream generated by a web page. For details about the sample code, see [createPdf](./arkts-apis-webview-WebviewController.md#createpdf14). 20 21**System capability**: SystemCapability.Web.Webview.Core 22 23**Return value** 24 25| Type | Description | 26| ---------- | -------- | 27| Uint8Array | Data stream.| 28