How to Replace Signatures in a Completed PDF Form
Question details
The user wants to reuse completed inspection forms by keeping the existing field data, but needs to remove the old signatures and collect new ones for a new period.
- Product
- Device & OS
- not provided
- Scenario
- Reusing periodic (e.g., quarterly) PDF inspection forms where the standard field data remains the same but new signatures are required.
- Observed behavior
- The signed PDF is locked or flattened, making it impossible to directly delete the old signatures and add new ones.
Before attempting to reuse the form data, ensure you have access to a blank, unsigned version of the original PDF form template, as signed documents are permanently locked for security reasons.
Export Form Data and Import into a Blank Template
The most efficient way to reuse form data without the locked signatures is to export the data from the signed PDF and import it into a fresh, unsigned template.
Once a PDF is signed, the software automatically locks and flattens the document to prevent tampering. You cannot directly delete or replace a signature. Instead, you must transfer the existing data to a new form.
Open the completed, signed PDF form in your PDF editor. Navigate to the form tools, locate the 'More' or options menu, and select 'Export Data'. Save the field data as an FDF or XML file.
Locate and open a blank, unsigned copy of the original PDF form template.
In the blank form, go back to the form tools and select 'Import Data'. Choose the FDF or XML file you exported in the first step to automatically populate the fields.
With the recurring data filled in, collect the new signatures on this freshly populated form and save it as a new document.
Request an Unsigned Source Document
If you do not have the original blank template and cannot export the data, you must request an unlocked file from the creator.
Use WPS Office to Manage, Fill, and Sign PDF Forms
WPS Office provides a comprehensive PDF toolkit that allows you to easily fill interactive forms, manage electronic signatures, and secure your documents effortlessly.
- 1. Open your PDF template: Download and launch WPS Office, then open your blank, unsigned PDF form template.
- 2. Fill the form fields: Use the PDF editing tools to fill in your recurring quarterly data or text fields.
- 3. Insert a signature: Navigate to the 'Insert' or 'Protect' tab and select 'PDF Signature' to add your new electronic signature.
- 4. Save the document: Position the signature appropriately and save the newly signed document to secure it.
Frequently Asked Questions
Why can't I delete a signature from a completed PDF?
When a PDF is digitally signed, the software typically locks or 'flattens' the document. This is a crucial security measure designed to prevent tampering and ensure the integrity of the signed agreement. Once locked, the signature becomes a permanent part of the document.
Can I unlock a signed PDF if I am the document owner?
Even if you are the owner or creator of the document, a digitally signed PDF usually cannot be unlocked for editing without invalidating the existing signatures. You must use an unsigned copy or the original source file to make changes.
What format is used when exporting PDF form data?
PDF form data is typically exported in FDF (Forms Data Format), XFDF, or XML formats. These lightweight files contain only the data entered into the form fields, making them easy to import into a matching blank PDF form.
