Doc E Sign
Doc E Sign is an e-signature service that produces signed PDFs with a built-in, independently verifiable audit trail — verifiable without a Doc E Sign account, without an internet connection, and without Doc E Sign existing.
- For developers and teams who need to send documents for signature and retain cryptographic proof that the signed document is unaltered.
- For counterparties, lawyers, and courts who need to verify a signed document's authenticity without relying on a third-party service.
- For anyone who signs a document — signers receive a copy of the signed PDF and can verify it independently at any time.
Where to start
- How it works — understand the verification model before you build
- Getting started — send your first document
- API reference — integrate Doc E Sign into your application