# PDFDocument.isPageReady()

```ts
isPageReady(pageIndex: number): boolean
```

Only meaningful after `fromUrlProgressive()`. Whether that page's bytes are already available.

- Kind: method
- Since: 1.0.0

| Parameter | Type | Description |
| --- | --- | --- |
| `pageIndex` | `number` | Zero-based page index. |

Returns `boolean`

Part of [PDFDocument](https://kernstra.com/docs/web-sdk/api/pdfdocument) in the Kernstra Web SDK 1.0.0 API reference.

Web page: https://kernstra.com/docs/web-sdk/api/pdfdocument/ispageready