How to Use Fill and Sign Without a Digital ID in PDFs
Question details
Users want to sign a PDF form using the standard Fill and Sign tool without being prompted to create or use a cryptographic digital ID.

- Product
- PDF Editor
- Device & OS
- not provided
- Scenario
- Signing a PDF document that contains predefined digital signature fields.
- Observed behavior
- When attempting to sign the document, the PDF editor prompts the user to create or configure a digital certificate instead of allowing a simple drawn or typed electronic signature.
Ensure you have editing permissions for the PDF document, as you will need to modify and delete the document's interactive form fields before signing.
Remove Signature Fields and Use the Fill & Sign Tool
Delete the existing digital signature fields to stop the system from requesting a digital certificate, allowing you to apply a standard electronic signature.
PDF forms created with dedicated 'Digital Signature' fields automatically trigger a prompt for cryptographic certificates. By deleting these specific fields, you revert the document to a standard state where the basic Fill & Sign features can be utilized freely.
Open the PDF document in your PDF editor and navigate to the 'Form' or 'Prepare Form' tool to access the interactive elements.
Locate the specific signature field that is causing the digital ID prompt. Right-click on the field and select 'Delete' or press the Delete key on your keyboard.
Exit the form editing mode and select the 'Fill & Sign' tool, usually found in the main toolbar or the Tools menu.
Click the option to add a signature. You can now draw, type, or upload an image of your signature and place it anywhere on the document.

Sign Any PDF Quickly with WPS Office
WPS Office provides a powerful PDF editor that lets you easily manage form fields, bypass strict digital ID requirements, and apply standard electronic signatures in seconds.
- 1. Open the PDF: Launch WPS Office and open your PDF document using WPS PDF.
- 2. Remove Restrictive Fields: Go to the 'Form' tab, locate any unwanted digital signature fields, and press Delete to remove them.
- 3. Access the Signature Tool: Switch to the 'Fill & Sign' or 'Insert' tab and click on the 'Sign' button.
- 4. Place Your Signature: Create your custom signature by drawing or typing, and click to place it anywhere on the document page.

Frequently Asked Questions
What is the difference between a digital ID and an electronic signature?
A digital ID (or digital certificate) uses cryptographic technology to verify the signer's identity and ensure the document hasn't been altered. A standard electronic signature is simply a digital image, drawn line, or typed name placed on the document representing your intent to sign.
Why does my PDF automatically ask for a digital ID?
The document was created with a specific 'Digital Signature' form field. When you click this field, PDF readers automatically prompt you to use a cryptographic digital ID. Removing this field allows you to use standard signing tools instead.
Can I remove a signature field if the PDF is locked or secured?
No. If the PDF is restricted with a permissions password, you must enter the password to unlock editing capabilities before you can delete form fields or alter the document structure.
Is it possible to sign with an image of my handwritten signature?
Yes. Once you bypass the digital ID prompt and access the Fill & Sign tool, you can choose to import a scanned image of your physical signature and place it anywhere on the document.




