eSignature platforms enable legally binding electronic signature capture on contracts, agreements, and documents — replacing wet-signature workflows with digital signing ceremonies that include identity verification, audit trails, and tamper-evident seals. Core capabilities include signature request workflows, multi-party signing order orchestration, signer authentication (email, SMS, KBA, ID verification), in-person and remote signing, envelope and template management, audit trail and certificate of completion, and integration with CLM, CRM, and HR systems. The category spans market-leading eSignature platforms (DocuSign, Adobe Acrobat Sign, PandaDoc) and emerging challengers (Dropbox Sign, SignNow, Zoho Sign).