Why Saving a Signed PDF Form Makes It Uneditable & How to Fix It
Question details
The user wants to know why a fillable PDF form becomes locked and uneditable after applying a digital signature, and how to prevent or fix this issue.
- Product
- Device & OS
- not provided
- Scenario
- Signing a fillable PDF form and attempting to edit or fill out remaining fields.
- Observed behavior
- The PDF form fields become locked and uneditable immediately after the document is signed and saved.
Ensure you have access to the original, unsigned version of the PDF form, as removing a signature from a locked document may not always be possible without the author's permission.
Configure Signature Field Properties to Prevent Locking
Adjust the digital signature field settings in your PDF editor before distributing or signing the form to ensure other fields remain fillable.
When a digital signature field is created, it can be set to lock the entire document, specific fields, or no fields at all upon signing. Changing this setting prevents the form from becoming uneditable.
Open the unsigned PDF form in your PDF editor in Form Editing mode. Right-click the digital signature field and select 'Properties'.
In the Properties dialog box, click on the 'Signed' tab to view the post-signing actions.
Uncheck the option that says 'Mark as read-only' or select 'Nothing happens when signed' to ensure the rest of the form remains editable after the signature is applied.
Close the properties window and save the PDF form. Distribute this updated version for signing.
Clear the Digital Signature to Edit the Form
If you have already signed the document and it became locked, you must clear the signature to make the fields editable again.
Manage PDF Signatures and Forms with WPS Office
WPS Office provides a comprehensive PDF toolkit that allows you to easily create fillable forms, manage digital signatures, and configure document security settings without locking yourself out of your own files.
- 1. Open PDF in WPS Office: Launch WPS Office and open your PDF form.
- 2. Access Form Tools: Navigate to the 'Form' tab to add or edit form fields and signature boxes.
- 3. Sign the Document: Go to the 'Protect' or 'Fill & Sign' tab to securely apply your digital signature without unintentionally locking the file.
Frequently Asked Questions
Can I unlock a signed PDF if I am not the original author?
Generally, no. If the author configured the signature to lock the document to preserve its integrity, you cannot unlock it without the password or the author's permission. You will need to request an unlocked or unsigned version from the sender.
Why do digital signatures lock PDF forms by default?
Digital signatures are designed to verify the authenticity and integrity of a document. Locking the form prevents unauthorized alterations to the data after the signer has approved it.
How can I sign a PDF without locking it?
You can use a standard electronic signature (like an image of your signature or a drawn signature) instead of a cryptographic digital signature, or ensure the digital signature field properties are set to not lock the document upon signing.
Does clearing a signature delete the form data?
No, clearing a digital signature only removes the cryptographic seal and unlocks the fields. The data you previously entered into the form fields will remain intact.
