PDF Security & Access Issues

How to Set Up Multiple Digital Signatures in an Editable PDF

Bushra ParveenBushra Parveen Nov 3, 2026 869 views

Question details

The user needs to configure a PDF document with multiple digital signature fields so that earlier signatures do not lock the document, allowing others to sign until a final manager's signature locks it.

Setting Up Multiple Digital Signatures in an Editable PDF without Locking
Product
PDF Editor
Device & OS
not provided
Scenario
A document requires sequential editing and signing by multiple individuals before a final managerial approval.
Observed behavior
The goal state is to ensure earlier signature fields allow continued form completion, while the final signature field is configured to lock the document and prevent any further changes.
Before you start

Ensure you have creator or administrative access to the PDF form to modify the properties of the digital signature fields before distributing the document for signing.

Solution 1Recommended

Configure Signature Properties for Sequential Signing

Set the properties of each signature field to control whether the document locks after signing to enable sequential workflows.

By default, applying a digital signature might lock a document to prevent tampering. To allow multiple people to sign and fill out forms sequentially without invalidating previous signatures, you must customize the post-signing action triggered by each specific signature field.

1
Open Signature Properties

Right-click the digital signature field intended for the early signers and select 'Properties' from the context menu.

2
Modify Signed Tab Settings

Navigate to the 'Signed' tab within the Properties dialog box to adjust what happens after this field is signed.

3
Prevent Document Locking

Select the option 'Nothing happens when applied'. This ensures the document remains editable for the next signer in your workflow.

4
Configure Final Signature

Repeat the process for the manager's final signature field. In the 'Signed' tab, select the option to 'Mark as read-only' or lock the document to finalize the file and prevent further edits.

Configure Signature Properties for Sequential Signing
Change Tracking: PDF editors track changes made after earlier signatures. If authorized form filling occurs, the prior signatures remain valid. Unauthorized edits will cause previous signatures to display a warning.
Manage PDF Signatures Easily

Handle Multiple Digital Signatures with WPS Office

WPS Office provides robust PDF editing tools, allowing you to create fillable forms, insert multiple digital signature fields, and securely manage document workflows without complex configurations.

  1. 1. Open your PDF in WPS: Launch WPS Office and open your PDF document using the built-in WPS PDF tool.
  2. 2. Access Form Tools: Navigate to the 'Form' tab on the top ribbon to access interactive form and signature controls.
  3. 3. Add Signature Fields: Click on the digital signature icon to place multiple signature fields throughout your document for different users.
  4. 4. Protect the Document: Once all signatures are collected, use the 'Protect' tab to encrypt or restrict editing for the finalized document.
Create and manage multiple digital signature fields effortlessly.Fully compatible with standard PDF formats and Adobe Acrobat signatures.Lightweight application with an intuitive, user-friendly interface.Comprehensive form-building tools for sequential approval workflows.
microsoft office alternative - wps office

Frequently Asked Questions

Why does my PDF lock after the first person signs it?

This happens if the first signature field is configured to lock the document upon signing. You need to change the field's properties under the 'Signed' tab to 'Nothing happens when applied' so subsequent users can still edit and sign.

Will earlier signatures become invalid if the next person fills out a form field?

As long as the next person only fills in designated, authorized form fields or applies their own signature, earlier signatures usually remain valid. Modifying the underlying PDF text or structure, however, will invalidate previous signatures.

How do I check if a PDF was modified after it was signed?

You can click on the digital signature in your PDF reader to view its properties. The signature panel will display the document's integrity status and indicate if any changes were made after that specific signature was applied.