How to Fix Acrobat Required Form Fields Being Skipped
Question details
Users are able to leave required fields empty while filling out a PDF form, even though the fields are configured as mandatory.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Creating or filling out an interactive PDF form with mandatory text fields or checkboxes.
- Observed behavior
- The PDF form allows users to skip past required fields without entering data during normal completion; the restriction is only enforced upon form submission.
Ensure you are opening the PDF in a dedicated PDF viewer that supports interactive form properties, as some web browsers may bypass required field validations entirely.
Configure the Submit Action to Enforce Validation
The 'Required' property is natively enforced during the form submission process. Setting up a dedicated submit button ensures validation triggers correctly.
By default, Adobe Acrobat only checks if a required field is empty when a 'Submit Form' action is executed. It does not stop a user from clicking or tabbing past the field while simply typing in the document.
Open your PDF document in Acrobat and select 'Prepare Form' from the Tools menu.
Select the 'Button' tool from the top toolbar and drag to create a new button on your form.
Right-click the newly created button, select 'Properties', and go to the 'Actions' tab.
From the 'Select Action' dropdown menu, choose 'Submit a form' and click the 'Add' button.
Enter the submission URL or 'mailto:' email address, apply the changes, and test the form. Attempting to click this button will now trigger the required field warnings.

Use JavaScript to Enforce Field Completion
Add a custom validation script to ensure fields are filled before the document is allowed to be saved or closed.
Create and Fill PDF Forms Easily with WPS Office
WPS PDF provides an intuitive way to fill out, create, and manage interactive PDF forms securely and efficiently.
- 1. Open the PDF: Launch WPS Office and open your interactive PDF document.
- 2. Access form tools: Navigate to the 'Form' tab on the top ribbon to access interactive form filling and editing tools.
- 3. Fill or edit fields: Click into the highlighted fields to fill them natively, or use the form creation tools to adjust text fields and buttons.
- 4. Save and share: Once the required fields are completed, click the 'Save' icon to preserve the filled data.

Frequently Asked Questions
Why do required fields show up in red but don't stop the user from typing elsewhere?
The red highlight is solely a visual indicator to guide the user. The actual validation that prevents completion only happens when the user clicks a 'Submit' button configured with a form submission action.
Can I prevent users from saving the PDF if required fields are left empty?
Yes, but this cannot be done with the basic 'Required' checkbox. It requires adding document-level JavaScript to the PDF to intercept the save action and check for empty mandatory fields.
Does the required field feature work when opening the PDF in a web browser?
Web browsers like Chrome or Edge use built-in PDF viewers that may not fully support advanced PDF form submission scripts or validations. It is highly recommended to instruct users to open the form in a dedicated desktop PDF application.




