Why Adobe Acrobat Requires a Digital ID for a Second Signature
Question details
The user needs to understand why a second signature field in a PDF demands a cryptographic digital ID instead of allowing a standard visual signature.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Signing a PDF document that contains multiple signature fields.
- Observed behavior
- The first signature field accepts a standard Fill & Sign signature, but attempting to sign the second field triggers a prompt requiring a configured digital ID or certificate.
Check whether the document legally requires a certified, cryptographic signature or if a standard visual signature is sufficient, as form creators sometimes incorrectly format the field types.
Verify and Change the Form Field Properties
Identify if the field is strictly encoded for digital certificates and replace it with a standard field if you have the proper editing permissions.
The required signature type is directly encoded into the form field by the document creator. If a field is specifically formatted as a 'Digital Signature' field, Acrobat will refuse standard handwritten inputs and demand a digital ID.
Right-click on the problematic second signature field and select 'Properties' to verify if it is designated as a Digital Signature field.
If you are the document author or have editing permissions, delete the restrictive digital signature field.
Insert a new standard text box or basic signature field that does not mandate a digital certificate.
If you cannot edit the file, ask the original form creator to replace the digital signature field with a standard 'Fill & Sign' compatible field.
Configure a Self-Signed Digital ID
Create a free, self-signed digital ID on your device to satisfy Acrobat's certificate requirement.
Use Adobe Sign for Multiple Signers
Bypass local PDF software limitations by routing the document through a cloud-based e-signature platform.
Easily Sign Multiple Fields in PDFs with WPS Office
If you want to avoid complicated digital ID configurations and simply add multiple visual signatures to your document, WPS Office provides a straightforward and highly compatible PDF signing experience.
- 1. Open your PDF: Launch WPS Office and open the PDF document that requires multiple signatures.
- 2. Access the signing tool: Navigate to the 'Fill & Sign' or 'PDF Signature' tool located in the top menu ribbon.
- 3. Create your signature: Draw, type, or upload an image of your signature to create a reusable stamp.
- 4. Apply multiple times: Click anywhere on the document, including over existing form fields, to drop your signature as many times as needed without triggering digital ID prompts.
Frequently Asked Questions
What is the difference between a standard signature and a digital ID?
A standard signature (or e-signature) is simply a visual representation of your handwritten signature placed on a document. A digital ID is a secure, cryptographic certificate that validates your identity and locks the document against unauthorized tampering after signing.
Why did the first signature work normally but the second requires a digital ID?
This happens when the document creator formats the fields differently. The first field was likely configured as a standard 'Text' or basic signature field, while the second field was explicitly encoded as a 'Digital Signature' field.
Can I remove a digital ID requirement from a PDF?
Yes, but only if you are the original author or have full editing permissions for the document. If you do, you can delete the restrictive digital signature field and insert a standard text or image field instead.
Does it cost money to get a digital ID?
No, you can generate a self-signed digital ID for free directly within Acrobat or most major PDF editors. However, third-party verified digital IDs issued by official Certificate Authorities may require a paid subscription.
