How to Prevent Specific Form Fields from Locking After Fill & Sign in PDF
Question details
The user wants to keep certain PDF form fields editable after completing the document with the Fill & Sign tool.
- Product
- Device & OS
- not provided
- Scenario
- Completing a fillable PDF form where specific fields still require input after the initial signature is applied.
- Observed behavior
- Using the standard Fill & Sign tool flattens the entire document, permanently locking all form fields and preventing further edits.
Before modifying your PDF's field properties, ensure you have a backup copy of the original fillable form in case you need to adjust the field locking settings later.
Use a Digital Signature Field for Selective Locking
Since the standard Fill & Sign tool automatically flattens the entire document, using a Digital Signature field instead allows you to control exactly which fields lock and which remain editable.
The default Fill & Sign feature is designed to permanently finalize documents, which inherently flattens the file and locks all fields. To achieve selective locking, you must bypass Fill & Sign and configure a Digital Signature field, which offers granular field-level control.
Open your PDF editor's form preparation tools and insert a Digital Signature field into the document where the signature is required.
Right-click the newly added signature field and select 'Properties' from the context menu to open the configuration settings.
Navigate to the 'Signed' tab within the properties window. Select the option that states 'Mark as read-only' and choose 'All fields except these' from the dropdown menu.
Click the 'Pick' or 'Select' button to check the specific form fields you want to remain active and editable after the signature is applied.
Save the properties. When signing the document, you can configure your digital signature profile to use an image of your handwritten signature, mimicking the appearance of the standard Fill & Sign tool.
Edit and Sign PDF Forms Seamlessly with WPS Office
WPS Office provides a comprehensive PDF editor that allows you to easily fill out forms, insert signatures, and manage your documents without unexpectedly losing field editability.
- 1. Open your PDF in WPS Office: Launch WPS Office and open your fillable PDF document.
- 2. Access Form Tools: Navigate to the 'Form' tab to interact with or modify fillable fields without unwanted flattening.
- 3. Insert Signature: Go to the 'Insert' or 'Fill & Sign' tab to quickly create and apply your signature.
- 4. Save the Document: Save your progress securely while maintaining form field integrity for future use.
Frequently Asked Questions
Why does the Fill & Sign tool flatten my PDF document?
The Fill & Sign tool is designed to quickly finalize a document. When applied, it converts all interactive form fields and added text into static content (flattening) to prevent unauthorized changes after the document has been signed.
Can I unlock a PDF form after it has been flattened by Fill & Sign?
No, flattening a PDF is generally a permanent action. To make further changes to the form fields, you will need to revert to an earlier, unflattened backup copy of the PDF.
Can I use an image of my handwritten signature in a Digital Signature field?
Yes, when configuring your digital ID or digital signature profile in most professional PDF editors, you have the option to upload an image of your handwritten signature to display within the signature field.
