The SigningHub for SharePoint add-in is used to integrate the SharePoint and SigningHub platforms, so that users may securely send, sign, verify and track their documents directly from their SharePoint document libraries. 


For this you need to have a SigningHub Enterprise account and a Microsoft SharePoint account on SharePoint 2016, SharePoint 2019 or SharePoint Online. The add-in installs within the SharePoint sites and allows the account owners to share their Office and PDF documents with others for review and digital signing.