---
title: undoManager
framework: paperkit
role: symbol
role_heading: Instance Property
path: paperkit/papermarkupviewcontroller/undomanager
---

# undoManager

## Declaration

```swift
@MainActor @preconcurrency override dynamic var undoManager: UndoManager? { get }
```

## See Also

### Responding to changes

- [delegate](paperkit/papermarkupviewcontroller/delegate-swift.property.md)
- [PaperMarkupViewController.Delegate](paperkit/papermarkupviewcontroller/delegate-swift.protocol.md)