When signer authentication matters.
With Adobe Sign, you get everything you need to comply with a range of signer authentication and document validation requirements. For most transactions, a standard e-signature is enough. It can be authenticated using one or more factors such as email, text message, or password. Other transactions require more advanced forms of authentication. When you use digital signatures, each signer is issued a certificate-based digital ID by a trusted Certificate Authority (CA), and signing is backed by public key infrastructure (PKI) technology.
Meet the world's first open, cloud-based digital signatures.
With 6 billion signature transactions a year, we are the undisputed leader in secure digital documents. We invented PDF. We drove the first open standards for digital signatures. And we're setting global standards again for digital signing using mobile devices and the web with the Cloud Signature Consortium. Our real-world solutions let you work with high-assurance digital IDs that are easy to use, easy to deploy, and internationally compliant.
Open and global.Our standards-based approach gives you everything you need to do business with confidence at home and abroad.
Unrivaled flexibility.With Adobe Sign, you can use digital signatures, e-signatures, or a combination of the two according to your specific needs.
We support the broadest range of legal requirements.
Whether you do business in the EU, create medical devices regulated by the FDA, or need to meet specific requirements for any industry — Adobe Sign has you covered. Digital signature processes in Adobe Sign comply with the U.S. FDA 21 CFR Part 11. They support rigorous requirements such as Advanced (AdES) and Qualified (QES) Electronic Signatures in the EU’s eIDAS regulation. And they provide comprehensive support for working with accredited certificate authorities (CAs) and qualified signature creation devices (QSCDs).
You can choose from hundreds of certificate authorities.
Adobe’s standards-based approach gives you the freedom to choose from hundreds of trusted certificate authorities, so you can comply with the laws or regulations governing your specific country or industry. With Adobe Sign, documents can be digitally signed, time stamped, and validated using EU Trusted Lists (EUTLs) or the global Adobe Approved Trust List (AATL) to ensure compliance.
Get compliance and flexibility in a single solution.
Whether you need the multifactor authentication that our e-signature process provides — or the more rigorous certificate-based authentication that comes with our digital signature process — you can have it all. And you can even combine e-signatures and digital signatures in the same workflow. One e-signature and digital signature solution, maximum flexibility — Adobe Sign.
Adobe Sign digital signature FAQ
What is a digital signature?
Digital signatures are the most advanced and secure type of electronic signature. You can use them to comply with the most demanding legal and regulatory requirements because they provide the highest levels of assurance about each signer's identity and the authenticity of the documents they sign. Digital signatures use a certificate-based digital ID issued by an accredited Certificate Authority (CA) or Trust Service Provider (TSP), so, when you digitally sign a document, your identity is uniquely linked to you, the signature is bound to the document with encryption, and everything can be verified using underlying technology known as Public Key Infrastructure (PKI).
How do digital signatures work?
Documents signed digitally in Adobe Sign provide evidence of each participant's signature within the document itself. During the signing process, the signer's certificate is cryptographically bound to the document using the private key uniquely held by that signer. During the validation process, the reciprocal public key is extracted from the signature and used to both authenticate the signer's identity through the CA and help ensure no changes were made to the document since it was signed. Audit trails provide additional valuable information, such as the signer's IP address or geolocation.