Fix Cannot Fill Out PDF Form Fields After Another User Signs
Question details
The user is unable to type into text fields or click checkboxes in a fillable PDF form after another person has applied a digital signature.
- Product
- Device & OS
- not provided
- Scenario
- Attempting to complete a multi-user fillable PDF form after a previous collaborator has already completed their section and digitally signed the file.
- Observed behavior
- The remaining form fields become read-only and locked, preventing any subsequent users from entering data or interacting with checkboxes.
Check the document's security properties and look for a visible digital signature panel to confirm if restrictions have been automatically applied to prevent further form filling.
Request an Unsigned File and Adjust the Signing Order
Because digital signatures intentionally lock documents to prevent post-signing tampering, the most effective solution is to acquire an unlocked copy and change the workflow order.
A digital signature is designed to secure a document's contents. If the sender's signature settings were configured to lock the entire document upon signing, all remaining fillable fields will become permanently uneditable to preserve the document's integrity.
Open the PDF document, navigate to the document properties or security settings, and check if 'Filling of form fields' is marked as 'Not Allowed'.
Contact the original sender or the previous signer and ask them to provide a fresh, unsigned version of the PDF form.
Ensure that all parties fill in their required text fields, checkboxes, and standard data before anyone applies a final cryptographic digital signature to the document.
Configure Signature Fields to Keep Forms Editable
If you are the creator of the form or have editing access to the original template, you can modify the signature properties so the document remains editable for subsequent users.
Edit and Fill PDF Forms Seamlessly with WPS Office
WPS Office provides a comprehensive PDF toolkit that makes it easy to fill out interactive forms, manage digital signatures, and check document security settings without accidentally locking out your collaborators.
- 1. Open the PDF Document: Launch WPS Office and open your fillable PDF file.
- 2. Interact with Form Fields: Interactive form fields will be highlighted. Simply click on the text fields or checkboxes to input your data.
- 3. Check Security Settings: Navigate to the 'Protect' tab to easily view document security details and confirm if form filling is permitted.
- 4. Add Your Signature: Once all form fields are correctly filled, use the 'Sign' feature under the 'Protect' or 'Insert' tab to securely add your own signature before sharing.
Frequently Asked Questions
Why do digital signatures lock PDF forms?
Digital signatures are fundamentally designed to prevent unauthorized changes after a document is signed, maintaining its legal and structural integrity. If the signature properties are configured to lock the document, all remaining unfilled form fields become strictly read-only.
Can I remove a digital signature to unlock the form fields?
Generally, you cannot remove someone else's digital signature unless you have the original unsigned file or specific administrative password permissions. Attempting to force-remove a signature will invalidate it and may corrupt the document.
How do I sign a PDF without locking the rest of the form?
When setting up the form, the document creator must ensure that the digital signature field's properties are not set to 'Lock document after signing'. Alternatively, users can use a standard image-based electronic signature rather than a cryptographic digital signature, as image signatures generally do not trigger document-wide locking.
