There are currently 58 active promotion codes up to 20% OFF discount. The Signature Software & Digital Certificates coupon database is updated on . E-signature software makes it possible to collect signatures on documents that are shared electronically. This eliminates the need for physical documents to record signatures. E-signature software also makes it easier to distribute legally sensitive documents so that electronic signatures can be collected. Organizations use this type of software to encrypt documents, like sales contracts or employment paperwork, which often require client, employee, or partner signatures.