# RequestPaperSizeCallback Function

> Callback function for requesting an array of paper sizes.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Function
- **Path:** DS Server > Reference > JavaScript API > RequestPaperSizeCallback Function
- **230 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript/requestpapersizecallback/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript/requestpapersizecallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript/requestpapersizecallback/llms-full.txt

---

### Description

Callback function for requesting an array of paper sizes.

### Syntax

```javascript
function(<Size> paperSize)
```

### Examples

The following example demonstrates `RequestPaperSizeCallback` in a practical document-editing workflow. Callback function for requesting an array of paper sizes.

```javascript
function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

function requestPaperSizeCallback(paperSize) {
    console.log("paper size:", paperSize);
}

TXTextControl.getSupportedPaperSizes(requestPaperSizeCallback, onTxError);
```

---

## Nearby

- **Previous:** [RequestPageNumberFieldCallback Function](https://docs.textcontrol.com/ds-server/reference/javascript/requestpagenumberfieldcallback/llms-full.txt)
- **Next:** [RequestParagraphCallback Function](https://docs.textcontrol.com/ds-server/reference/javascript/requestparagraphcallback/llms-full.txt)