# useSetPageRotation

Source: https://sdk.pdf.net/docs/v1/reference/useSetPageRotation



Returns a function that sets the rotation of pages, one or several at once as a single undo step.

```ts
const setPageRotation = useSetPageRotation()

setPageRotation(pageIdOrPageIds, rotation)
```

* `rotation` is in degrees, clockwise, and must land on a quarter turn: `0`, `90`, `180`, or `270`. Values outside `0..360` are normalized first, so `-90` and `450` are valid; anything not on a quarter turn throws `InvalidInputError`.
* The rotation is absolute, not added to the current one. To rotate relative to the current angle, read the page's `rotation` from [usePages](https://sdk.pdf.net/docs/v1/reference/usePages) first.
* Every id must identify an existing page, or the call throws `InvalidInputError`; with no document loaded, it throws `DocumentNotLoadedError`.

## Example [#example]

```tsx
import { usePages, useSetPageRotation } from '@sdk-pdf/react'

function useRotatePageClockwise() {
  const pages = usePages()
  const setPageRotation = useSetPageRotation()

  return (pageId: string) => {
    const page = pages.find((page) => page.id === pageId)
    if (page) setPageRotation(pageId, page.rotation + 90)
  }
}
```