---
title: "Supported PDF form fields on Android | Nutrient SDK"
canonical_url: "https://www.nutrient.io/guides/android/forms/introduction-to-forms/"
md_url: "https://www.nutrient.io/guides/android/forms/introduction-to-forms.md"
last_updated: "2026-05-15T19:10:04.908Z"
description: "Nutrient supports all form types specified by the PDF specification."
---

# Supported PDF form fields on Android

Nutrient supports all form types specified by the PDF specification.

| Type                           | Field object           | Annotation object        |
| ------------------------------ | ---------------------- | ------------------------ |
| Check, radio, and push buttons | [`ButtonFormField`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-button-form-field/index.html)  | [`ButtonFormElement`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-button-form-element/index.html)  |
| List and combo boxes           | [`ChoiceFormField`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-choice-form-field/index.html)  | [`ChoiceFormElement`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-choice-form-element/index.html)  |
| Text                           | [`TextFormField`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-text-form-field/index.html)    | [`TextFormElement`]      |
| Signatures                     | [`SignatureFormField`] | [`SignatureFormElement`] |

We differentiate between field objects and annotation objects; field objects have no visual representation of their own and are represented by [`FormField`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-form-field/index.html), while annotation objects are visual representations of a single control inside a form field and are represented by [`FormElement`](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.forms/-form-element/index.html).
---

## Related pages

- [Understanding interactive PDF forms and their benefits](/guides/android/forms/introduction-to-forms/what-are-forms.md)
- [Efficiently store PDF form data on Android](/guides/android/forms/introduction-to-forms/data-formats.md)