> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/annotation/freeform-rotation.md).

# Freeform rotation for PDF annotations

Enhance PDF annotations with freeform rotation capabilities. Rotate Line, Polygon, Freehand, and more with a 360-degree control handle. Learn how to enable, disable, and configure rotation options pro

Line, Polygon, Polyline, Freehand, Ellipse, Rectangle, Stamp, FreeText annotations show a rotation control when selected. This control handle lets the user rotate the annotation with a full range (360 degrees).

![](https://3532544125-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FX9YnTSKIHvV7m0A36LbO%2Fuploads%2Fgit-blob-c8c9f06771a4d6ded990796a3d38ceec7b29f42b%2Fcd85dba2d7a03daf81b3ae322656260d98c4b5da-1024x596.gif?alt=media)

## Rotating annotations programmatically

To rotate annotations programmatically, supported annotations have a `rotate` function that takes an angle to rotate by:

{% tabs %}
{% tab title="JavaScript" %}
{% code lineNumbers="true" %}

```js
const { annotationManager, Annotations } = instance.Core;
annotationManager.getAnnotationsList().forEach((annotation) => {
  if (annotation instanceof Annotations.RectangleAnnotation) {
    annotation.rotate(45);
  }
});
```

{% endcode %}
{% endtab %}
{% endtabs %}

## Disabling freeform rotation

By default, freeform rotation is enabled for all Line, Polyline, Polygon or Freehand annotations. In order to disable it, the following can be done:

{% tabs %}
{% tab title="JavaScript (SDK v8.0+)" %}
{% code lineNumbers="true" %}

```js
const annotManager = instance.Core.annotationManager;
annotManager.setRotationOptions({
  isEnabled: false,
});
```

{% endcode %}

[AnnotationManager.setRotationOptions](https://sdk.apryse.com/api/web/Core.AnnotationManager.html#setRotationOptions)
{% endtab %}

{% tab title="JavaScript (SDK v7.0+)" %}
{% code lineNumbers="true" %}

```js
const { annotManager } = instance;
annotManager.setFreeformRotationEnabled(false);
```

{% endcode %}
{% endtab %}
{% endtabs %}

Using the [setRotationOptions](https://sdk.apryse.com/api/web/Core.AnnotationManager.html#setRotationOptions) API, then you can disable rotation completely. If you would like to disable free form rotation on certain annotations, then the following can be used instead:

{% tabs %}
{% tab title="JavaScript (SDK v8.0+)" %}
{% code lineNumbers="true" %}

```js
Webviewer(...)
  .then(instance => {
    const { annotationManager } = instance.Core;

    annotationManager.addEventListener('annotationChanged', (annotations, action) => {
      if (action === 'add') {
        annotations.forEach((annotation) => {
          annotation.disableRotationControl();
        });
      }
    });
  });
```

{% endcode %}

[Annotation.disableRotationControl](https://sdk.apryse.com/api/web/Core.Annotations.Annotation.html#disableRotationControl)
{% endtab %}

{% tab title="JavaScript (SDK v7.0+)" %}
{% code lineNumbers="true" %}

```js
Webviewer(...)
  .then(instance => {
    const { annotManager } = instance;

    annotManager.on('annotationChanged', (annotations, action) => {
      if (action === 'add') {
        annotations.forEach((annotation) => {
          annotation.setRotationControlEnabled(false);
        });
      }
    });
  });
```

{% endcode %}
{% endtab %}
{% endtabs %}

Vice-versa, to enable rotation controls, you would use the [enableRotationControl](https://sdk.apryse.com/api/web/Core.Annotations.Annotation.html#enableRotationControl) API.

## Configuring freeform rotation options

If you would like to configure the rotation type and rotation step sizes, that can be done with the same [setRotationOptions](https://sdk.apryse.com/api/web/Core.AnnotationManager.html#setRotationOptions) API.

{% tabs %}
{% tab title="JavaScript" %}
{% code lineNumbers="true" %}

```js
const annotManager = instance.Core.annotationManager;
annotManager.setRotationOptions({
  isEnabled: true,
  defaultRotationType: Core.AnnotationManager.RotationTypes.SNAP_ROTATION,
  hotkeyTogglesRotationType: false,
  snapAngleStepSizeInDegrees: 60,
});
```

{% endcode %}
{% endtab %}
{% endtabs %}


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