---
title: "Undo and redo in PDF form field on iOS | Nutrient SDK"
canonical_url: "https://www.nutrient.io/guides/ios/forms/fill-form-fields/undo-and-redo/"
md_url: "https://www.nutrient.io/guides/ios/forms/fill-form-fields/undo-and-redo.md"
last_updated: "2026-05-23T00:08:18.107Z"
description: "Form elements are based on annotations, so undoing and redoing changes to forms works the same way as for annotations. See our undo."
---

# Undo and redo for PDF forms on iOS

Form elements are based on annotations, so undoing and redoing changes to forms works the same way as for annotations. See our [undo and redo](https://www.nutrient.io/guides/ios/features/undo-redo.md) guide to learn more.
---

## Related pages

- [Attach a file to a PDF form field on iOS](/guides/ios/forms/fill-form-fields/attach-a-file.md)
- [Add or edit images in PDF form fields on iOS](/guides/ios/forms/fill-form-fields/image-picker.md)
- [Form field support in our iOS viewer](/guides/ios/forms/fill-form-fields/using-the-ui.md)
- [Fill PDF form fields programmatically on iOS](/guides/ios/forms/form-filling.md)
- [Detect user input in PDF form fields on iOS](/guides/ios/forms/fill-form-fields/detect-user-input.md)