PDF Editing Issues

How to Change or Delete a Saved PDF Signature in Adobe Acrobat

Steve K Oct 19, 2026 869 views

Question details

The user needs to know how to remove, edit, or replace an electronic or digital signature that has been applied to a PDF document.

How to Change or Delete a Saved PDF Signature

Product: Adobe Acrobat
Device & OS: not provided
Scenario: The user has signed a PDF and needs to change or remove the signature, either before finalizing the document or after it has been saved.
Observed behavior: The signature cannot be removed or edited once the PDF is electronically or digitally signed and saved due to built-in security mechanisms.

Before you start

Determine whether the signed PDF has already been saved. Once a document with a digital or electronic signature is saved, the signature is permanently locked for security reasons.

Solution 1Recommended

Remove or Change a Signature Before Saving

If you are currently editing the document and haven't saved it yet, you can easily delete or replace the signature.

When using the Fill & Sign tool, signatures remain editable until the document is finalized and saved. This allows you to easily correct mistakes or reposition the signature.

Locate the signature

Find the signature you just placed on the currently open PDF document.

Select the signature

Tap or click on the signature to reveal the floating editing menu.

Delete the signature

Click the minus (-) icon or the delete button to remove the signature from the page.

Add a new signature

Select the Fill & Sign tool again to create or place a new signature in the desired location.

Remove or Change a Signature Before Saving

Applies to Acrobat Mobile App: This process works identically in the Acrobat mobile app while the document is still open and unsaved.

Solution 2

Handling Signatures on a Saved PDF

Once a PDF is signed and saved, the signature is locked and cannot be removed directly.

Easy PDF Signing and Editing

Sign and Edit PDFs Effortlessly with WPS Office

WPS Office provides a comprehensive PDF toolset that allows you to easily add, manage, and edit electronic signatures before finalizing your documents. It offers an intuitive interface for all your PDF editing needs.

1. Open your PDF: Launch WPS Office and open your PDF document.
2. Access the signing tool: Navigate to the 'Insert' or 'Protect' tab and select the 'Sign' option.
3. Place the signature: Create a new signature or select an existing one, then click on the page to place it.
4. Edit or delete before saving: To delete an unsaved signature, simply click on it and press the Delete key or click the trash icon.
5. Save the document: Save the document only when you are completely satisfied with the signature placement.

Free and lightweight PDF reader and editorSeamlessly add, manage, and delete signatures before savingHigh compatibility with Adobe Acrobat PDF formatsUser-friendly interface for effortless document management

microsoft office alternative - wps office

Frequently Asked Questions

Why can't I delete a signature after saving the PDF?

Electronic and digital signatures are designed to lock the document once saved. This is a fundamental security mechanism to ensure the document has not been tampered with or altered after it was signed.

Can the original author of the PDF remove my signature?

No, once the document is electronically signed and saved, neither the signer nor the author can remove the signature. An unsigned copy of the original document must be used if changes are required.

How do I change my saved default signature in the application?

To change your saved default signature for future use, open the Fill & Sign tool, select the signature icon, and choose the option to delete or clear the saved signature (usually represented by a minus or cross icon). You can then create and save a new default signature.

Is there any software tool that can unlock a signed PDF?

Legitimate PDF editors respect the cryptographic lock placed by digital signatures. Attempting to force-remove a signature invalidates the document's security, tracking, and authenticity.

PDF Troubleshooting