DocuSign

DocuSign is e-signature software for sending documents to be signed online. You upload a quote, proposal or contract, place signature and date fields, and send it to one or more signers in a set order. Each signer gets an email link and can sign on any device.

Completed documents come with a certificate that records who signed, when and from where, which helps if a signature is questioned later. Templates save time on repeat documents, and integrations connect it to CRMs and document tools.

It suits businesses of any size that need a widely recognized signing process. If you only send a few documents a month, compare the envelope limits on each plan against your volume.

Its API lets developers add signing to their own apps and send documents automatically when a deal closes in the CRM.