How to Lock a Fillable PDF Form While Keeping Signature Fields Available
Question details
The user needs to configure a PDF form so that an administrator can complete and sign it, thereby locking the filled data, but keeping a specific digital signature field open for the client.
- Product
- Device & OS
- not provided
- Scenario
- Creating a multi-party fillable PDF form that requires an internal signature to lock form fields before securely sending it to a client for final signature.
- Observed behavior
- The administrator needs to lock the completed fields after their signature is applied, ensuring the document remains editable exclusively for the client's signature.
Ensure you have a premium PDF editor installed, as creating and configuring digital signature field permissions requires advanced PDF form editing tools. You will also need your digital ID ready for testing the signature workflow.
Configure Signature Field Properties to Lock Specific Fields
Set up two separate digital signature fields and use the 'Signed' tab in the first signature's properties to lock all fields except the second one.
This method requires a professional PDF editor to create and configure the form fields. Once configured, the form can be signed by the administrator, locking the content, and then securely passed to the client who can sign the designated field using a free PDF reader.
Open your PDF editor and add two digital signature fields to the PDF form: one for the administrator and one for the client.
Right-click the administrator's signature field and select 'Properties' from the context menu.
In the Digital Signature Properties window, navigate to the 'Signed' tab to manage what happens after the document is signed.
Select the option to lock fields upon signing, then choose 'Just these fields'. A list will appear allowing you to select all the form fields you want to lock. Crucially, make sure to exclude the client's signature field from this selection.
Save the form, then test the complete workflow by signing as the administrator in a standard PDF reader. Verify that the rest of the form is locked while the client signature field remains active.
Create and Secure Fillable PDF Forms with WPS Office
WPS Office provides powerful PDF editing tools that allow you to easily create fillable forms, insert digital signature fields, and manage document security to ensure seamless workflows.
- 1. Open Your PDF: Launch WPS Office and open your PDF document in WPS PDF.
- 2. Access Form Tools: Go to the 'Form' tab to easily add text fields, checkboxes, and digital signature fields to your document.
- 3. Manage Protection: Navigate to the 'Protect' tab to manage document permissions, encryption, and digital signatures.
- 4. Save and Share: Save the finalized interactive form and share it with clients securely, knowing your permissions are intact.
Frequently Asked Questions
Can I use a free PDF reader to create locked signature fields?
No, creating and configuring specific locking permissions for signature fields requires a professional PDF editor. However, a free reader can be used by the client to sign the already configured document.
What happens if I accidentally lock the client signature field?
If the client signature field is locked by the administrator's signature, the client will not be able to sign the document. You will need to clear your digital signature, adjust the field properties in the 'Signed' tab to exclude the client's field, and sign it again.
Does locking fields prevent someone from extracting the data?
Locking a field via a digital signature prevents the content from being edited within the PDF viewer. However, for maximum security against data extraction or document tampering, you should also apply document encryption and restrict editing permissions using a password.
Can I lock the entire document after the client signs it?
Yes, you can configure the client's signature field properties to 'Lock all fields' upon signing. Once the client applies their digital signature, the entire document, including their signature, will be finalized and locked from further changes.
