Integrate identity-proofing Into Your Document Workflow

Support Regulatory Compliance
Protect the integrity of your business. Stay compliant with AML (Anti-Money Laundering) and KYC (Know Your Customer) regulations while avoiding costly fines and other worst-case scenarios.

Document Security
Carry out authorized document processes and ensure that your signers are who they claim to be. Quickly run verification checks to spot fake signatures and fake IDs.

Verified Electronic Signature
Our advanced algorithms analyze signature patterns and characteristics to deliver highly accurate verification results. Say goodbye to the uncertainty of manual verification and rely on our trusted system.

Streamlined Transactions
Save time and effort with our lightning-fast verification process. Within seconds, you’ll receive results, allowing you to move forward with your business transactions without delays.
Electronic Signature Verification Process

Enable Signer Verification

Signer Confirms Identity

Verification Complete
Signature Verification Technology
ID and eID Verification
The signer uploads a photo of their government-issued ID (or eID) and takes a selfie. Our app will then extract the biometric data from the selfie and compares it with the details shown in the ID.
Document Authenticity
Fill provides another level of security by automatically checking whether the security features integrated into the document are genuine or authentic.
Face Match
Our app uses advanced facial recognition technology to compare and contrast the features between the face images provided in the ID and the selfie.
Liveness Detection
Conduct liveness checks using biometric-based identity verification. Steer clear from common document vulnerabilities while preventing spoofing and deepfake phishing attacks.
Digital Certificates
Quickly verify the authenticity of digital certificates and see if they come from trusted CAs (certificate authorities) like DigiCert and IdenTrust. Secure your electronic agreements with digital signatures that comply with the PKI standards.
Extraction & Recognition
Using OCR technology, Fill automatically converts scanned data into text while eliminating the need for manual data entry and extraction. It also simplifies identity verification by using machine-readable text to validate customer information.
Fill Signer Identity Verification Use Cases
Client and customer onboarding
Employee onboarding
Lending and financial services
eCommerce and retail
Online healthcare record systems
Patient consent management
Government applications
Insurance claims and applications

Frequently Asked Questions
How to verify a signer's identity?
Verifying a signer’s identity is easy with Fill’s signer identity verification. With our eSignature platform, you can seamlessly integrate identity-proofing into your document signing process and contract workflows. All you need is to toggle the identity verification switch and enable it before sending a signature request. The signer will then receive a notice to confirm their identity through ID verification, selfie, and 3D liveness checks. After doing so, that’s the time the app grants access to the restricted document so the signer can successfully fulfill the signature request.
Why is electronic signature verification important?
Signer verification is a must to secure document transactions and contract processes. It adds another layer of security, preventing anyone from carrying out unauthorized actions that could lead to costly damages and serious violations. By validating a signer’s identity, you can mitigate the risks caused by fraudulent activities. You can also build and maintain customer trust, which is a must for boosting your business reputation.
What documents can be used to verify identity?
With Fill, signers can verify their identities via in-app verification by providing legally issued documents from more than 200 countries, including the UK, US, and Canada.
These documents include:
- Passports
- Driving licenses
- National ID cards
- Government-issued photo IDs and eIDs
- UK citizen cards
- State IDs
- School IDs (with your full name, birth date, and photo)
- Medical IDs (with your full name, birth date, and photo)
- Young Scot card
- Temporary residence cards
- Green cards
For more details regarding our list of accepted documents, you may contact our support team via email, phone, or live chat.

