Enable Auto-signature

Hi there

Hope you are doing well and sorry for the trouble.

At the moment, Adobe Acrobat Sign does not allow a system to automatically apply or pre-fill an e-signature on behalf of a user.

What’s not supported

You cannot pre-save a user’s e-signature and apply it automatically without their direct action.

Adobe Sign requires the signer to actively consent and perform the signing step (click, authenticate, and apply the signature).

This applies even if the document is pre-filled and even if the user previously signed other documents.

This is a legal and compliance requirement (eIDAS, ESIGN, UETA, etc.) to ensure signer intent and non-repudiation.

What is supported

You can:

Pre-fill all non-signature fields (name, address, ID, account number, etc.) using:

• Adobe Sign APIs
• Form field data merge

Send the agreement to the user with only the signature step remaining

Use authentication methods (email, OTP, SSO, etc.) to streamline access

Allow users to reuse their drawn/typed signature, but they still must click to sign

Common workaround patterns

For large user bases (like your 500k users), customers typically use one of these approaches:

• Click-to-sign flow > Document opens pre-filled > User only clicks “Sign” → “Apply” > No manual data entry required

Note: If a solution allows signing without user action, it is not legally enforceable as an electronic signature in most jurisdictions, and Adobe Sign intentionally blocks this behavior.

~Amal