---
title: "PDF form fields in Flutter"
canonical_url: "https://www.nutrient.io/guides/flutter/forms/introduction-to-forms/form-fields/"
md_url: "https://www.nutrient.io/guides/flutter/forms/introduction-to-forms/form-fields.md"
last_updated: "2026-05-23T00:08:18.091Z"
description: "Discover supported PDF form fields in Flutter and learn how to enhance user interaction with various input options. Get started with our guide."
---

# Essential PDF form fields for Flutter applications

A PDF form is similar to a form in real life. Forms enable a user to add information to a preformatted page. Consider the form shown below as an example:

Each highlighted area is called a field, and it’s where a user can enter information. The PDF specification has a concept of different form field types that can help in this situation. The table below has an exhaustive list of form field types supported by Nutrient.

| Type         | Detail                      |
| ------------ | --------------------------- |
| Text field   | Alphanumeric text           |
| Checkbox     | On/off state                |
| Radio button | Selection of choices        |
| Combo box    | Dropdown list of choices    |
| List box     | Scrollable list of choices  |
| Signature    | Unique electronic signature |
| Button       | Assignable actions          |

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## Related pages

- [Exploring the advantages of PDF forms](/guides/flutter/forms/introduction-to-forms/what-are-forms.md)