Certified Digital Signatures: Features and Migration
A certified digital signature is backed by a CA-issued certificate vouching for the signer's identity. What makes one certified and what it costs.

Senior Product Manager, Nota Sign
Daniel Aori is a Senior Product Manager at Nota Sign, specializing in cross-border eSignature products and compliance-driven innovation. With a background in information systems and global SaaS product strategy, he leads projects that bridge user experience, security, and regulatory requirements. Daniel is passionate about creating intuitive digital signing experiences that combine product scalability with trust and compliance.

A certified digital signature is backed by a CA-issued certificate vouching for the signer's identity. What makes one certified and what it costs.

An e-signature API lets your app create envelopes, collect signatures, and retrieve evidence programmatically. Capabilities and the security checklist.

A conformed signature is a typed name in place of a handwritten mark. The legal force, the conventions that govern it, and when it must be replaced.

The DocuSign sandbox is a free developer environment for testing e-signature API integrations without touching production envelopes. Setup, limits, and tests.

A waiver signature records that someone knowingly gave up a known right. The types businesses run, when e-signing is enforceable in the US, and what to capture.

How contract automation works: workflow components, approval controls, clause libraries, ROI metrics, CLM/CRM integration, and where e-signature fits the chain.

