Use radio buttons for mutually exclusive options
A radio button group lets users select only one option. Radio buttons share properties with check box fields.
Users cannot clear a radio button by clicking it again. To clear a selection, users must do one of the following:
- Select another radio button in the group.
- Reset the form.
Add a radio button field
- Open the PDF in Nitro PDF Pro
- On the Forms tab, in the Form Fields group, click Radio Button

- Drag the pointer on the page to create the field
- Open the field properties:
- Double-click the field
- Or right-click the field and select Properties
- Set the field name and appearance. Use one of these options:
- The Properties context tab

- The Properties dialog

- The Properties context tab
- Open the Options tab:
- From the context tab, click Properties > Options
- From the dialog, click Options
- Configure the radio button:
- Radio Button Style: Select the appearance
- Export Value: Enter a value

Important:
- Use the same field name for all radio buttons in a group
- Use a different Export Value for each option
Edit a radio button field
- Open the PDF in Nitro PDF Pro
- On the Forms tab, in the Form Fields group, do one of the following:
- Click the field type
- Click Select Fields
- Double-click the field to edit its properties