PDF Editing Issues

How to Allow Users to Change Font Formatting in a Fillable PDF

Kushani NimanthikaKushani Nimanthika Nov 5, 2026 868 views

Question details

The user wants to create a fillable PDF form that permits end-users to change the font style, size, and color of the text they type into the form fields.

How to Allow Users to Change Font Formatting in a Fillable PDF
Product
PDF
Device & OS
not provided
Scenario
Creating and distributing a printable, fillable PDF form where recipients require text customization capabilities.
Observed behavior
By default, form fields lock the user into a specific font format. Form creators need to modify field properties to allow rich text editing for end-users.
Before you start

Ensure you have a PDF editor capable of modifying interactive form fields, and inform your recipients that they will need a compliant PDF reader to utilize the formatting tools.

Solution 1Recommended

Enable Rich Text Formatting in Form Field Properties

By enabling the rich text formatting option within a text field's properties, you grant users the ability to apply custom styles, sizes, and colors to their inputted text.

Standard PDF text fields are set to plain text by default, which restricts formatting to the designer's predefined settings. Activating rich text allows users to bring up a text formatting toolbar when filling out the form.

1
Enter form editing mode

Open your PDF document in your PDF form editor (such as Adobe Acrobat) and switch to the form creation or editing workspace.

2
Open Field Properties

Right-click or double-click the specific text field you want to modify, and select 'Properties' from the context menu.

3
Enable Rich Text

Navigate to the 'Options' tab within the Text Field Properties dialog box. Check the box labeled 'Allow Rich Text Formatting'.

4
Save changes

Close the Properties dialog box and save your PDF document. The field is now ready to accept customized text from users.

Enable Rich Text Formatting in Form Field Properties
PDF Reader Compatibility: Recipients must open the form in an application that fully supports rich text form fields (like dedicated desktop PDF readers) to see and use the font formatting controls. Basic web browser viewers may not display these options.
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  1. 1. Open your PDF in WPS Office: Launch WPS Office, go to the 'PDF' tab, and open the document you wish to turn into a fillable form.
  2. 2. Access the Form tools: Navigate to the 'Form' tab on the top ribbon to reveal the interactive form creation and editing tools.
  3. 3. Add or modify a text field: Click 'Text Field' to draw a new fillable area, or double-click an existing text field to open its settings.
  4. 4. Adjust properties and save: Modify the field's appearance and text formatting options according to your needs, then save the document for distribution.
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Frequently Asked Questions

Why can't recipients change the font in my fillable PDF?

If the 'Allow Rich Text Formatting' option is not checked in the text field's properties, the field only accepts plain text. It will default to the single pre-set font and size chosen by you when the form was created.

What happens if a user opens the rich-text PDF form in a web browser?

Many built-in web browser PDF viewers (like Chrome or Edge) offer limited form support and do not recognize rich text formatting properties. Users might only be able to enter plain text or may not see the form fields correctly. It is best to advise users to open the form in a dedicated PDF reader.

Can I set a default font size but still allow users to change it?

Yes. In the text field properties, you can select a default font and size under the 'Appearance' tab while simultaneously enabling rich text formatting in the 'Options' tab. This provides a baseline look but permits user overrides.