# PDFDocument.isClosed

```ts
get isClosed(): boolean
```

Whether `close()` has been called.

- Kind: getter
- Since: 1.0.0

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/isclosed