Best Digital Signature Software for Microsoft 365
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Compare the Top Digital Signature Software that integrates with Microsoft 365 as of December 2025
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This a list of Digital Signature software that integrates with Microsoft 365. Use the filters on the left to add additional filters for products that have integrations with Microsoft 365. View the products that work with Microsoft 365 in the table below.
What is Digital Signature Software for Microsoft 365?
Digital signature software, also known as electronic signature or e-signature software. enables individuals and organizations to securely sign electronic documents using cryptographic technology that verifies authenticity, integrity, and signer identity. It replaces traditional handwritten signatures with legally recognized digital equivalents that comply with standards such as eIDAS, ESIGN, and UETA. These platforms use public key infrastructure (PKI) to encrypt and validate signatures, ensuring that documents cannot be altered after signing. Many solutions integrate with workflows, email, and document management systems to streamline contract approvals and reduce paperwork. By providing security, efficiency, and legal compliance, digital signature software has become essential for modern business transactions across industries. Compare and read user reviews of the best Digital Signature software for Microsoft 365 currently available using the table below. This list is updated regularly.
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1
Odoo
Odoo
Odoo is a fully integrated, customizable, open-source software packed with hundreds of expertly designed business applications. Odoo’s intuitive database is able to meet a majority of business needs, such as: CRM, Sales, Project, Manufacturing, Inventory, and Accounting, just to name a few. Odoo is an all-in-one software solution designed to meet the needs of companies, regardless of their size (or budget). The unbeatable, seamless nature of Odoo helps businesses become more efficient by reducing redundant manual processes, which helps companies save countless hours of labor. Every module is interconnected to provide a fully-integrated experience from app to app, and users can automate many processes that would’ve otherwise required manual inputs into multiple applications. Odoo keeps all business functions in one place, allowing teams to collaborate with other departments from one unified platform in the most efficient way possible.Starting Price: $25.00/month/user -
2
iBabs
iBabs
Effortlessly manage agendas, documents, and board meetings with iBabs. Designed to streamline the entire decision-making process, iBabs eliminates the need for paperwork, making meetings more efficient and informed. This intuitive app provides complete control and a clear overview of all meeting details, empowering organizers and attendees alike. Trusted by around 3,000 organizations and over 300,000 users, iBabs ensures smooth, effective meetings on any device, securely and automatically. With years of experience refining board meeting processes, iBabs offers peace of mind and confidence in making good decisions. -
3
Box
Box
Store, sign, and secure your content on Box, the leading Intelligent Content Management platform. Built for the AI-first era, Box simplifies your tech stack and conserves cost with one secure, end-to-end solution for the entire content lifecycle. ✓ Unlock the value of your content with AI: Pair top AI models with your organization’s content to find information, extract insights, build custom AI agents, and automate the work that slows you down ✓ Get unlimited collaboration: Create, manage, and share files from anywhere, with anyone ✓ Protect your content: Secure your sensitive files and data, thanks to granular access controls, intelligent threat detection, and adherence to stringent compliance requirements ✓ Scale with 1,500+ integrations: Work from anywhere across all your team’s favorite apps and extend the power of Box with APIsStarting Price: $5 per month -
4
Adobe Acrobat
Adobe
Adobe Acrobat is a versatile PDF solution that allows users to create, edit, and sign PDF documents seamlessly. Whether you're working on a desktop, mobile device, or online, Acrobat enables you to convert files to and from PDFs, edit text and images, and organize your documents with ease. The platform also offers advanced features like e-signatures, document protection, and PDF comparison, making it ideal for both personal and business use. Acrobat integrates with popular cloud storage services, allowing for easy document sharing and collaboration from anywhere.Starting Price: $12.99 per month -
5
airSlate SignNow
airSlate
SignNow from airSlate is an electronic signature that enables business to be conducted anywhere, anytime and on any device. SignNow offers the best ROI for SBM and mid-market thanks to its intuitive UI, transparent pricing, flexible configuration and the ease of API integrations. Sign documents online, generate agreements, negotiate contracts, and accept payments with legally-binding eSignatures. airSlate SignNow’s intuitive interface allows newcomers to create an account, upload, eSign, and send their first document for signing in minutes — no training or downloads required. Break free from predatory pricing plans with hidden costs at renewal. With airSlate SignNow, you only pay for what you use, without overcharges for extra sends or templates. Close deals faster in person or remotely, improve team collaboration, and get complete visibility into the document signing process using advanced functionality tailored to your needs.Starting Price: $8 per user per month -
6
Adobe Acrobat Sign
Adobe
Transform and speed up your workflows with Acrobat Sign – the only e-sign tool that includes the power of Adobe Acrobat in one package. Access Acrobat PDF documents and sign documents from anywhere, on mobile or desktop. Your recipients can sign in a snap — no downloads or sign-ups required. Easily scan and upload PDFs using the free Adobe Scan mobile app on your device. Join 500,000 organizations who are elevating the customer experience with the power of electronic signature software and Acrobat PDF features. Adobe makes it easy for you to create, edit, collaborate, e-sign, and share PDFs, on any device. Choose from a range of scalable document signing solutions to meet your unique business needs — with or without PDF document management features. As Microsoft’s preferred e-signature solution, Acrobat Sign integrates with the most comprehensive suite of Microsoft apps, so you can send and sign PDFs without leaving the app you’re working in. -
7
Nitro PDF
Nitro Software
Nitro PDF is a full-featured PDF editor and is recognized as the strongest alternative to Adobe Acrobat. It's simple to purchase, easy to implement, and straightforward to use. With a powerful suite of tools, you can easily edit, convert, sign, annotate, combine, secure, and protect your documents, streamlining workflows and allowing you to focus on what matters. Our flexible plans and affordable pricing cater to everyone, from individual users and small teams to large enterprises. Plus, we offer a wide range of support resources to ensure the success of every customer.Starting Price: $15/user/month -
8
pdfFiller
pdfFiller
pdfFiller is a cloud-based platform with a comprehensive digital toolkit that makes handling PDFs easy. Edit, sign, store, manage, and collaborate on documents all in one place — no downloads, switching apps, or paying for multiple subscriptions needed. All your documents are safely stored in the cloud, so you can access them anytime, anywhere, without worrying about losing your data.Starting Price: $8.00/month/user -
9
Adobe Document Cloud
Adobe
With Adobe Document Cloud — which includes the world’s leading PDF and electronic signature solutions — you can turn manual document processes into efficient digital ones. Now your team can take quick action on documents, workflows, and tasks — across multiple screens and devices — anywhere, any time, and inside your favorite Microsoft and enterprise apps. Connect to your PDFs from anywhere and share them with anyone. With Acrobat Pro DC, you can review a report on your phone, edit a proposal on your tablet, and add comments to a presentation in your browser. You can get more done without missing a beat. When Adobe Sign drives all-digital signature workflows, it’s fast and easy for anyone to create, route, and get agreements legally signed. Businesses can streamline new-hire onboarding. Individuals can get applications approved in a snap. And everyone can finish multi-step processes faster than ever.Starting Price: $12.99 per month -
10
E-Sign
E-Sign
Keep your business moving forward with a leading secure electronic signature system. Generate documents, negotiate contracts, accept payments, and create automated workflows. E-Sign is a leading global provider of electronic signature solutions. Our eSignature platform accelerates agreements, eliminates manual tasks, and makes it easy to connect with the tools and systems you’re already using. Agreements are everywhere in everyday life. From sales contracts and offer letters to account openings and invoices. E-Sign’s eSignature solution gives you have the ability to complete contracts, approvals, and other agreements in minutes. And because E-Sign can fit into your digital ecosystem, you can extend these benefits to other stages of the agreement process, such as preparing, acting on, and managing agreements.Starting Price: £10 per month -
11
OneSpan Sign
OneSpan
OneSpan Sign is a secure and reliable electronic signature solution that powers some of the world's most trusted brands. Top analyst firms and regulated industries recognize OneSpan Sign as a flexible and scalable solution that enables them to manage identities, secure access, verify transactions, and protect assets across the enterprise, financial, e-commerce, government, and healthcare markets. Available in the cloud or on-premises, OneSpan Sign seamlessly captures signatures at the point of sale (POS), in the field, or on websites.Starting Price: $20.00/month/user -
12
Nintex Process Platform
Nintex
Enterprise organizations around the world leverage the Nintex Process Platform every day to quickly and easily manage, automate and optimize their business processes. The Nintex Process Platform includes capabilities for process mapping, workflow automation, document generation, forms, mobile apps, process intelligence and more, all with an easy to use drag and drop designer. Accelerate your organization’s digital transformation journey with the next generation of Nintex Workflow Cloud. Put The Power of Process™ into the hands of your ops, IT, process professionals, business analysts, and power users. Start digitizing forms, workflows, and more today. The Nintex Process Platform is the most complete platform for process management and automation. Nintex makes it fast and easy to manage, automate, and optimize your business processes. -
13
airSlate WorkFlow
airSlate
airSlate WorkFlow is the first and only holistic no-code business automation platform. airSlate WorkFlow combines e-signing, no-code robotic process automation, contract negotiation, document generation and web forms into a single, business automation platform. Configure and automate any business process and integrate it into any system of record without writing a single line of code. Start any process with a single click directly from your system of record. Automatically pre-fill and extract data, route documents based on real-time updates, and archive them once completed. Get started in minutes with tens of thousands of pre-built workflows and document templates for any department and industry use case. A single holistic platform ‒ no need to integrate multiple services or platforms. No‑code configuration and deployment decreases time to value by 10x.Starting Price: $19 per month -
14
Skribble
Skribble
Sign electronically with Skribble. Legally valid worldwide, securely hosted in Switzerland. Frequently used for: Employment contracts, Sales contracts, Annual financial statements. The easiest way to legally sign documents, with or without formal requirements. Upload documents. Upload the PDF document directly via browser or use Skribble via API from your business software. Invite signers. Invite internal and external signatories by e-mail and select the e-signature standard to be used for signing. Sign at the push of a button. Sign legally valid in accordance with EU and Swiss law within seconds, regardless of location, on your smartphone or computer. Sign with Skribble and save 90% compared to signing on paper. Use the potential of seamless digital processes. Get contracts signed faster. Within seconds, all parties can access the most current version of the contract and sign it with just a few clicks.Starting Price: 79 € per month -
15
GoFormz
GoFormz
Teams of every size and industry use GoFormz to create digital forms and collect data. GoFormz is the only forms solution that empowers users to create a digital version of an existing document or build a form from scratch. And using GoFormz’s AI Form Builder, you can digitize a form in seconds! Simply upload a form, and with just a click, AI will instantly map data fields to your form, including text, tables, images, eSignatures, and more. Your form can even be customized with conditional logic, calculations, and required fields. Fill out your forms on mobile devices in the GoFormz app (even offline) and online from a computer. Easily share forms with people outside of your organization, allowing them to complete forms without a GoFormz login. Use GoFormz to automate workflows, like routing forms and data to colleagues, dashboards, and connected systems, like Salesforce, Procore, Autodesk, Microsoft, and Google Workspace. Try a 14-day free trial of GoFormz or requestStarting Price: Free -
16
Apptivo
Apptivo
Discover how Apptivo CRM Software can help attract, engage, retain and delight more customers. No more juggling between various apps. Increase your productivity and boost your client relationship by managing your Customers, Finances, and Support right from your pocket. Get all the following apps in one CRM, Invoices, Projects, Work Orders, Timesheets, Orders, Estimates, Help Desk, Expenses Reports. A simple online CRM system to store contacts, reminders, files, and communication history. If your business grows and you need more apps, feel free to add them from the App Store at anytime. Manage your sales pipeline, stay on top of employee activities, and close more deals. Track your sales and easily convert them into invoices to get paid quickly! Our mission is to reserve no effort to help our clients and their businesses to thrive and be successful. Everything you need in one cloud solution: CRM, Project Management, Invoicing & more.Starting Price: $10.00 per user per month -
17
Autenti
Autenti
Autenti is an all-in-one e-signature platform for the approval of documents and signing contracts online. We transform traditional b2b and b2c transactions into e-commerce through convenient and secure ways that bring more sales with one-click e-signatures, BPA solutions and remote identity verification services. Autenti significantly reduces the time it takes to close any transaction that would take several days to just a few seconds, allowing for measurable benefits and savings. The platform is independent of all signing parties, is eIDAS regulation-compliant and is an intermediary trust service provider that secures document integrity and business certainty. Autenti aims to digitise document workflows, reduce paper and ink consumption, replace the use of courier services and become a leader in pro-ecological solutions. The Autenti platform has it all, guaranteeing clients a full scope of e-transaction services.Starting Price: 20 EUR/month/per user -
18
RazorSign
RazorSign
RazorSign, a contracts-driven legal operations platform built on the state-of-the-art, sixth-generation Razor platform. RazorSign seamlessly automates and integrates your legal functions, providing a streamlined and intuitive experience that enhances implementation, adaptability, and scalability. With its advanced features and innovative technology. RazorSign is an award-winning Legal Technology leader - empowering the legal community with cutting-edge and intuitive solutions, RazorSign stands at the forefront of legal technology. Recognized as the “Outstanding Legal Innovator” by the Asia-Pacific Legal Innovation & Technology Association in 2022, RazorSign boasts: 100+ Success Stories; 10,000+ Users; 21+ Industry Verticals; 95% Client Retention. · Contract Lifecycle Management · Matter & Case Management · Legal Spend & E-Billing · Legal Entity Management · Corporate Compliance Management · Legal Query ManagementStarting Price: $30 -
19
PDFpenPro
Smile Software
Powerful PDF Editing On Your Mac. Add signatures, text, and images. Make changes and correct typos. OCR scanned docs. Fill out and create forms. Export to Microsoft® Word, Excel, PowerPoint. With PDFpenPro, you can add text and signatures, make corrections, OCR scanned docs and more, just like PDFpen. But PDFpenPro goes beyond, with more powerful features. Make a scanned form come alive with PDFpenPro! Build interactive forms with text fields, checkboxes, radio buttons, interactive signature fields and submit buttons! Export your PDFs not just in .docx format for the Microsoft® Word users in your life, but also .xlsx for Excel, .pptx for PowerPoint, and PDF/A for archival PDFs. Whether it’s a single Web page or a whole site, make it into a PDF complete with clickable links. Now you can edit your PDFs wherever you are. Use iCloud or Dropbox for seamless editing with PDFpen for iPad & iPhone.Starting Price: $124.95 one-time fee -
20
PDFpen
Smile Software
Add signatures, text, and images. Make changes and correct typos. OCR scanned docs. Fill out forms. Proofread OCR text! PDFpen does Optical Character Recognition (OCR): turn those pictures of scanned text into words you can use, then proofread them for accuracy. Need some major changes to your PDF? Export your PDFs in .docx format for easy PDF editing and sharing with Microsoft Word users. Select text in your PDF, click “Correct Text,” and edit away! Editing a PDF on your Mac has never been easier. Sign PDFs on your Mac! Sign with your secure and trusted digital signature. Scan in a signature and drop it into your PDF. Or, scribble your signature with a mouse or trackpad. Signed, sealed, delivered: no fax, no fuss. Now you can edit your PDFs wherever you are. Use iCloud or Dropbox for seamless editing with PDFpen for iPad & iPhone. Need a new page? Insert one. Need to remove a page? Delete it. Pages out of order? Just drag and drop to re-order. Even combine PDFs with drag and drop.Starting Price: $74.95 one-time fee -
21
Formstack Sign
Formstack
Collect digital signatures anywhere. Simplify your document workflows with Formstack Sign, a digital signature automation solution that lets you gather signatures on any device. Accessible electronic signatures. Avoid the bottlenecks associated with waiting for eSignatures. With digital document signing, users can eSign documents using a computer, tablet, or mobile phone. From contract to deal, you can quickly connect the dots with Formstack Sign. Powerful digital signature automation features. Collect signatures on the go. Easily collect mobile signatures from prospects, customers, or coworkers by sending documents for signature via text message. Create custom documents in minutes. Use Formstack Documents to eliminate paperwork and transform data into beautifully designed documents you can send anywhere. eSignature Drag-and-Drop Builder With our intuitive drag-and-drop builder, you won't need your IT department to prepare your documents for signature. Customizable Templates Quickly.Starting Price: $15.95 per user, per month -
22
GetBusy
GetBusy
Task Management Software. Organize your team with unmissable tasks. Focus your team with small, clear tasks that always get done. Packed with powerful features like online signatures. Trusted By Over 8,000 Teams. Small, clear tasks that always get done. These days critical tasks come from all directions, on different platforms, from different people. They often need the input of others to complete them. GetBusy’s task management software gets your work under control, making it unmissable, ordered and prioritized. Task Management. Imagine if your team always knew the who, what and when of every message. Client Requests. GetBusy isn't limited to your own team. Send tasks to anyone, anywhere – just like an email. Signatures. Exchange and sign legally binding documents at a fraction of the price of dedicated signature tools. File Requests. Chasing a file? Request confidential files as clear tasks. And much more secure than email.Starting Price: £30 per user per month -
23
Box Sign
Box
Box Sign's native integration puts e-signatures right where your content lives in Box, powering a simple, seamless signing experience for critical business documents like sales contracts and offer letters. Plus, the Content Cloud helps you manage the entire process, from authoring agreements to getting signatures to retaining executed agreements. Since Box Sign is part of the Content Cloud, you get 1,500+ integrations with your favorite apps like Microsoft 365, Salesforce, and Okta. With a secure content layer and e-signatures built right in, you can close deals faster, work with partners more effectively, and onboard new employees virtually. Give your teams, customers, and partners the best experience by embedding Box Sign into your website and custom applications. Our easy-to-use APIs and developer-friendly tools enable you to extend the power of e-signatures everywhere your business needs it.Starting Price: $10 per month -
24
Hushmail
Hushmail
Hushmail protects your clients by adding encryption to your emails, web forms and e-signatures. It’s secure, HIPAA-compliant, and trusted by healthcare professionals worldwide. Best of all, Hushmail is easy to set up and use. Send your first encrypted email today, and set up a secure online intake form in minutes. Your Hushmail account works just like a regular email account, with added security features to help keep your data safe. Send and receive encrypted email on the web and iPhone. Access your account using Outlook, Apple Mail or your Android smartphone. Move your forms online in minutes. Hush™ Secure Forms is our secure alternative to old-fashioned paper forms and includes online signing for your most important digital forms. Switching from pen and ink to e-signatures has never been easier.Starting Price: $9.99/month/user -
25
SigniFlow
SigniFlow
If you’re finding that the outdated pen to paper methods of signing documents and contracts are not meeting the modern demands of your business and its customers, then it’s time to go digital. Using our digital signature security, every document signed with SigniFlow has the necessary embedments to enhance non-repudiation. Deploy SigniFlow on-premise, in your own data center, or take advantage of our compliant, secure datacentre offerings, localized across regions And because electronic signatures are simply not good enough, SigniFlow applies the latest cryptographic digital signature standards to securely sign PDF documents. Join the millions worldwide that are switching from electronic, to digital signatures.Starting Price: $8.00/month/user -
26
MOXIS
XiTrust Secure Technologies
How you run MOXIS is up to you. MOXIS allows all three common hosting models. No matter which you choose: MOXIS’ range of services has the same scope and quality in every scenario. Whether you are aiming for an external or internal solution, MOXIS leads the way together with you. MOXIS fits seamlessly into your IT architecture and communicates fluently with all existing systems, including other signature solutions. Sign up to 100 documents electronically with a single mouse click. MOXIS maps decision hierarchies 1:1. Parallel and sequential workflows of any signature quality can be created and saved as templates. The integration of external signers is performed with 100 % data security. Individual document creation or assignment of existing form fields. Existing contracts can be processed immediately in MOXIS. Our API enables straightforward integration. In addition, MOXIS offers out-of-the-box integrations with your leading systems such as SAP or Salesforce. -
27
emSigner
eMudhra
emSigner, eMudhra’s proprietary digital signing and workflow management solution allows companies to sign, send, track, archive and manage documents in a snap, and in the process build an entire document ecosystem in a digital manner. The core of emSigner is designed to offer high-end security and flexibility with multiple signing options, paired with easy integration into any existing application ecosystem. This makes it an ideal solution for creating end-to-end paperless ecosystem in SME’s, large enterprises, and even government organizations.Starting Price: $12 per month per user -
28
ContractPodAi
ContractPodAi
Legal Reimagined - Step into the Future of Enterprise Legal ContractPodAi is a leader in AI-driven legal technology, empowering enterprises to manage risk, drive efficiency, and maximize ROI across the business. Powered by Leah, ContractPodAi’s advanced Agentic AI architecture, our solutions transform legal intelligence into a business accelerator—whether through our industry-leading Agentic Contract Lifecycle Management (CLM) platform or Leah, our Legal Agentic AI solution. Our adaptable approach ensures that organizations can start with their most pressing challenges and scale seamlessly as their requirements grow. Partnered with OpenAI, Anthropic, Google, Microsoft, DocuSign, and Salesforce, ContractPodAi is trusted by leading global organizations. Headquartered in London, with offices in New York, San Francisco, Glasgow, and Mumbai, we are your ally in legal transformation. -
29
Bigle
Bigle
Bigle is a legal tech company that offers a software suite with 4 products: Bigle CLM, the legal AI Bigle Libra, Bigle Sign and Bigle Academy. The company's mission is to streamline the legal operations of companies, improving security and minimising the risk of legal contingencies. The platform allows professionals to automatically create documents, share them for review, validate them in real-time, collaborate virtually, negotiate and has its own electronic signature. Bigle has developed a generative artificial intelligence assistant, Libra, which is connected to its CLM platform, developed for legal departments, which is an expert in the legal field and offers a secure environment of maximum confidentiality, minimising the hallucinations typical of other generalist tools. The technology company is a pioneer and leader in the field of no-code document automation, has a global presence and its clients include large corporations and large law firms. -
30
Certifaction
Certifaction
Future-proof your signing with a privacy-first solution. Sign or certify your files with protected confidentiality. Stay in control with E2E encryption and local processing. Digitize your business with the next generation of eSigning. All other eSigning solutions have access to your documents, even the most confidential ones. Work time is better spent than manually printing, scanning, and mailing documents. No business should have manual signing processes when it can be done digitally in just a few clicks. Adopting eSigning shouldn’t be hard but should come with developer-friendly APIs & an easy-to-use WebApp. Your colleagues and customers should be able to sign legally valid from anywhere and at any time. A compliant eSigning should come with regulated signatures and advanced identity verification. The only solution that comes with privacy-by-design, where all your data is by default locally processed on your device.Starting Price: $190 per year
