Adobe Sign is a leading e‑signature solution tightly integrated with Microsoft 365. Below are 20 robust alternatives that also offer native Microsoft 365/Office 365 integration, allowing users to sign, send, and manage documents directly from Outlook, Teams, SharePoint, and OneDrive.
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Industry‑standard e‑signature platform with Outlook add‑in, Teams connector, and SharePoint/OneDrive integration for seamless workflow automation.
User‑friendly signing solution with native Outlook add‑in, Teams bot, and direct access to files stored in OneDrive and SharePoint.
Fast, API‑driven e‑signature tool offering Outlook plug‑in, Teams integration, and the ability to embed signing fields in SharePoint documents.
All‑in‑one document automation suite with Microsoft Teams, Outlook, and OneDrive connectors for creating, sending, and e‑signing proposals.
Mobile‑first e‑signature app that integrates with Outlook, Teams, and OneDrive, enabling signing on any device.
Enterprise‑grade e‑signature platform with deep Microsoft 365 integration, including Azure AD SSO and SharePoint workflow support.
Secure contract management and e‑signature solution with Outlook add‑in and Teams integration for sales and procurement teams.
Cloud‑based signing service offering Outlook plug‑in, Teams bot, and direct OneDrive/SharePoint file access.
Simple, GDPR‑compliant e‑signature tool with Outlook add‑in, Teams connector, and native OneDrive integration.
Part of the Zoho suite, Zoho Sign integrates with Outlook, Teams, and OneDrive, allowing automated signing workflows.
Formstack’s e‑signature solution with Outlook add‑in, Teams integration, and seamless embedding in SharePoint forms.
PDF editing and signing platform offering Outlook integration and the ability to pull documents from OneDrive for instant signing.
Secure e‑signature app with Microsoft 365 integration, supporting Outlook, Teams, and OneDrive for document handling.
UK‑based e‑signature service with Outlook add‑in and Teams connector, plus direct OneDrive file access.
Part of Nitro’s PDF suite, Nitro Sign integrates with Outlook, Teams, and OneDrive, enabling fast electronic signing.
Document management platform with e‑signature capabilities, offering Outlook add‑in and OneDrive/SharePoint connectivity.
European e‑signature provider with GDPR compliance, Outlook plug‑in, Teams integration, and OneDrive support.
Secure e‑signature solution focused on the EU market, offering Microsoft Teams bot and Outlook integration for streamlined signing.
Document management and workflow automation platform that includes e‑signature capabilities with Outlook and Teams integration.
While part of Adobe Sign, the Acrobat desktop app provides a lightweight e‑signature experience with direct OneDrive and Outlook integration.