Signer Authentication & Security

Verify the identity a signer with multiple levels of authentication before giving access to documents.

Two-Factor Authentication

Add another level of security to your documents: Send a one-time password sent by text message to allow signers access to a document.

IP and Device Logging

Track every action taken inside your account by IP address and device.

Photo Verification

Require photo verification of a signer before allowing access to a document.

Social Network Validation

Social integrations authenticate signers using their Facebook or LinkedIn profile.

PDFfiller Stamp

Verify a signature's authenticity with a PDFfiller stamp.