Best eSign Software and Digital Signature Tools in 2025
What is eSign software?
eSign software, also known as electronic signature software, allows individuals and organizations to securely sign and send documents digitally.
It replaces the need for printing, scanning, or manually mailing physical papers by creating legally binding electronic signatures that are authenticated and traceable.
The best eSign tools are more than digital versions of handwritten signatures. They combine security, automation, and compliance in one streamlined solution that helps teams move faster while maintaining full legal and regulatory confidence.
In 2025, eSign technology has become an integral part of how companies operate. Whether closing a deal, onboarding a new hire, or finalizing a legal agreement, eSign software enables collaboration without boundaries, saving time, reducing costs, and keeping business moving from anywhere.
Why modern businesses rely on eSign software
Electronic signatures have transformed how work gets done. Every department — from Sales and HR to Legal, Procurement, and Finance — now depends on them to complete transactions faster and more securely.
Traditional signing methods slow everything down: printing contracts, collecting wet ink signatures, scanning documents, and storing physical copies. But the best eSign software eliminates these bottlenecks. It provides a centralized, secure workflow where every action is logged, every signature is authenticated, and every document is legally binding.
For many businesses, adopting eSign software isn’t just about convenience; it’s about resilience and efficiency. In a distributed and hybrid work environment, digital signature tools ensure continuity, protect sensitive data, and accelerate business outcomes.
Common ways businesses use eSign tools include:
- Sales teams: Send, track, and finalize contracts in hours instead of days.
- HR departments: Complete onboarding and policy updates without paperwork.
- Legal teams: Maintain full visibility, audit trails, and compliance confidence.
- Finance and procurement teams: Approve invoices, renew contracts, and verify transactions digitally.
- Healthcare and education: Protect personal data and comply with strict security regulations.
With global eSignature adoption projected to surpass $6 billion by 2026, finding the best eSign solution for your business is now a fundamental investment.
How we evaluated the best eSign software
To identify the best eSign software solutions of 2025, we evaluated each platform across ten critical criteria that reflect the needs of today’s digital businesses.
- Pricing Transparency: Clear, predictable costs without hidden fees or overage penalties.
- Value for Money: Whether the pricing aligns with the feature set and scalability offered.
- Ease of Use: How intuitive and fast the solution is to deploy and adopt across teams.
- Security and Compliance: Certifications, encryption standards, and adherence to global eSign laws (e.g., eIDAS, ESIGN Act, UETA).
- Integration and API Capabilities: Breadth and quality of integrations with CRMs, document tools, and automation systems.
- Workflow Automation: Availability of templates, bulk sending, reminders, and routing workflows.
- Admin and Governance Controls: Ability to manage teams, permissions, and document visibility at scale.
- Customer Support and Training: Quality and accessibility of ongoing support.
- Flexibility and Scalability: Suitability for both small teams and global organizations.
- Overall Performance and User Feedback: Speed, uptime, and verified customer satisfaction scores.
Our findings in evaluating eSign software reflect a combination of customer feedback, third-party reviews, and direct performance testing.
Feature comparison: what to look for in the best eSign solution
The best eSign tools make document signing effortless while maintaining enterprise-grade security. Look for:
- Legally binding signatures compliant with global regulations.
- Audit trails and tamper-proof logs documenting every action.
- Multi-layer authentication options like SMS, email, and ID verification.
- Bulk sending and reusable templates to speed up high-volume workflows.
- Secure storage and encryption for all signed documents.
- Mobile and desktop access for flexibility on the go.
- API integration and automation to connect with existing business systems.
- Transparent pricing without overage penalties or support add-ons.
Businesses that invest in an eSign solution meeting these criteria report faster turnaround times, reduced operational costs, and measurable gains in customer and employee satisfaction.
Compare the best eSign solutions at a glance
Tool |
Best For |
Key Strength |
Key Limitation |
|
Nitro Sign |
Teams seeking secure, affordable, intuitive eSign workflows |
Transparent pricing, enterprise-grade compliance, responsive support |
Fewer pre-built integrations (offset by flexible API) |
|
Docusign |
Large enterprises with complex approval processes |
Industry pioneer with wide feature set |
High cost, support fees, complex UI |
|
Adobe Sign |
Businesses already using Adobe Acrobat or Creative Cloud |
Seamless integration in Adobe ecosystem |
Expensive, rigid setup |
|
Foxit Sign |
SMBs needing low-cost signing |
Budget friendly, fast setup |
Limited compliance depth |
|
PandaDoc |
Sales and marketing teams needing document automation |
Strong templates and analytics |
Over-engineered and expensive for simple use |
|
signNow |
Small teams and education |
Simple interface and pricing |
Basic functionality, minimal compliance tools |
|
Dropbox Sign |
Freelancers and startups |
Easy link with Dropbox |
Missing enterprise-grade governance |
What are the top eSign solutions in 2025?
Nitro Sign
Best for: Businesses that want a secure, affordable, and scalable eSignature solution without unnecessary complexity.
Nitro Sign empowers teams to streamline document workflows with simple, secure, and legally compliant eSigning. Designed for real-world use cases, Nitro Sign offers all essential features — templates, bulk send, audit trails, and authentication — within an intuitive interface that emphasizes ease of use.
Nitro Sign: Strengths
- Transparent pricing with no hidden fees or penalties
- 200 packages per user annually (double Docusign’s limit)
- Only completed packages count toward allowance
- SSO and custom branding included at no extra cost
- SOC 2 Type II, HIPAA, ISO 27001, and GDPR compliant
- Global legal validity under eIDAS, UETA, and ESIGN Act
- Reliable customer support with 95% satisfaction rate

Nitro Sign: Weaknesses
- Fewer native integrations than incumbents, though API connectivity offers flexibility for developers
Verdict: Nitro Sign delivers enterprise-grade security and usability at a fraction of the cost of Docusign or Adobe Sign. Its fair, predictable pricing model and easy deployment make it the standout electronic signature software choice for organizations prioritizing speed, compliance, and value.

Nitro Sign for Developers: The Power of the Sign API
The best eSign solution goes beyond a user interface; it must also seamlessly integrate into your core business systems. For organizations focused on high-volume automation or building custom, client-facing signing experiences, the Nitro Sign API offers complete control and flexibility.
Our robust, developer-friendly API allows you to embed secure, compliant, and efficient eSignature capabilities directly into your own applications, internal tools, and existing workflows. This means you can:
-
Automate High-Volume Workflows: Eliminate manual steps by automatically generating, sending, and tracking signature requests directly from your CRM, ERP, or custom portal.
-
Build Seamless Experiences: Embed signing right into your client-facing application, providing a frictionless experience that retains your brand and avoids redirecting users to a third-party site.
-
Ensure Compliance at Scale: Leverage Nitro's enterprise-grade security, global compliance (eIDAS, UETA, ESIGN), and robust audit trails, all within your custom application.
For developers and product teams, the Nitro Sign API delivers the full functionality of the platform - Create Signature Requests, Check Status, Retrieve Document Information - with dedicated support to ensure a fast, successful deployment.
Stop paying for bloated, complex API packages and choose Nitro for a partner built with value and speed top-of-mind.
Start Your Free 14-Day Trial of Nitro Sign Today
Docusign
Best for: Large enterprises with complex or heavily regulated signing workflows.
Docusign remains the most recognized name in eSignatures and offers a broad feature set suited to multinational corporations. However, that power comes with a high price tag and considerable complexity.
Docusign: Strengths
- Wide range of advanced features
- Strong global compliance record
- Extensive integration library
Docusign: Weaknesses
- High per-user and per-envelope pricing
- 100-envelope annual cap per user with overage penalties
- 15% support fee on top of contract cost
- Complex onboarding for smaller teams
Verdict: A robust solution for enterprises that require every advanced option, but most businesses end up paying for features they never use. Nitro Sign offers comparable compliance and security at up to 70% lower cost.
Adobe Sign
Best for: Organizations deeply invested in Adobe Acrobat or Creative Cloud.
Adobe Sign extends the Adobe ecosystem into digital signatures, offering tight integration and enterprise reliability. However, its rigid structure and high pricing limit its appeal beyond existing Adobe customers.
Adobe Sign: Strengths
- Familiar interface for Adobe users
- Trusted global compliance standards
- Strong analytics and tracking
Adobe Sign: Weaknesses
- Expensive per-user pricing
- Complex to deploy at scale
- Limited customer support accessibility
Verdict: A solid tool for businesses already using Adobe workflows. For non-Adobe users, other solutions provide similar reliability, easier deployment, and significantly lower total cost of ownership.
Foxit Sign
Best for: Small businesses needing straightforward eSigning without enterprise overhead.
Foxit Sign focuses on affordability and simplicity, but its feature set remains basic compared to competitors.
Foxit Sign: Strengths
- Competitive pricing
- Easy setup and minimal training
Foxit Sign: Weaknesses
- Limited high-trust signature support
- Restricted compliance coverage
- Minimal automation features
Verdict: An option for small teams with light eSign needs, but not scalable or compliant enough for larger or regulated organizations.
PandaDoc
Best for: Sales and marketing teams managing proposals, quotes, and contracts.
PandaDoc merges document creation, eSign, and payment collection, but its complexity and price make it less attractive for teams needing pure eSign functionality.
PandaDoc: Strengths
- Advanced document creation and analytics
- Integrations with CRMs and payment tools
PandaDoc: Weaknesses
- Expensive (up to $49 per user monthly)
- Steep learning curve
- Unnecessary complexity for basic signing
Verdict: Ideal for document-heavy marketing and sales workflows. For cost-effective signing alone, other providers offer simpler workflows and higher ROI.
Honorable mentions
- signNow: Offers a clean interface and reliable core signing for small organizations, though limited compliance features restrict enterprise adoption.
- DocHub: A simple Google-integrated tool for schools and nonprofits.
eSign success stories: How teams use Nitro Sign
Healthcare: Medelse
French healthcare platform Medelse used Nitro Sign to solve a major operational bottleneck: slow, paper-based signing processes for urgent medical contracts. Nitro Sign’s secure integration and compliance with eIDAS, GDPR, and HIPAA enabled healthcare professionals to sign contracts digitally and in minutes instead of hours.
By embedding Nitro Sign directly into its recruitment platform, Medelse delivered:
- Secure digital signing for temporary and permanent contracts
- Audit trails ensuring compliance across multiple healthcare institutions
- A user experience that saved valuable time for doctors and administrators
Today, Medelse credits Nitro Sign with helping accelerate its mission of matching healthcare professionals with critical roles across France.
HR: Cegid
Cegid, one of Europe’s leading HR technology providers, wanted to deliver a completely paperless employee lifecycle — from onboarding to offboarding. By integrating Nitro Sign into its digital HR platform, Cegid enabled HR teams to generate, send, and sign employment documents seamlessly.
Nitro Sign provided Cegid with:
- Native integration and flexible templates within the Cegid platform
- Support for advanced authentication methods like SMS and email OTP
- Compliance with regional signing standards, including eID and biometric options
As a result, HR professionals and candidates alike experienced a faster, smoother process, with Cegid reducing turnaround times from days to minutes.
Finance: Mozzeno
Belgian fintech company Mozzeno processes more than 60,000 eSignatures annually using Nitro Sign. Seeking to eliminate physical paperwork while meeting strict EU regulatory standards, the company required a secure, flexible solution that integrated easily into its lending platform.
Nitro Sign delivered:
- Full API control, allowing Mozzeno to customize signing flows
- Support for qualified eSignatures compliant with eIDAS
- Simplified user experience with no dependency on Java or plugins
Thanks to Nitro Sign’s flexibility and compliance strength, Mozzeno operates a fully digital lending process, saving significant operational costs and providing customers with instant, secure approvals.
Real Estate: Knight Frank Australia
As one of the world’s largest real estate consultancies, Knight Frank Australia generates hundreds of contracts monthly. Prior to adopting Nitro Sign, property deals were delayed by slow paper-based signing cycles.
With Nitro Sign, the company digitized its contract process, achieving:
- Signing turnaround reduced from days to minutes
- 90% employee adoption of Nitro Sign within the first year
- 40% reduction in overall document management costs
John Walton, Director of Service Delivery, praised Nitro’s flexibility and customer support:
“Getting real estate contracts signed with Nitro is just so easy. From an economic perspective, it’s far superior to the alternatives.”
Education: University of Bremen
The University of Bremen in Germany needed a cost-effective, easy-to-manage document solution for 18,000 students and staff. Adobe’s licensing model proved expensive and cumbersome.
By switching to Nitro Sign and Nitro PDF Pro, the university achieved:
- Simplified license management for a dynamic academic workforce
- Immediate cost savings compared to Adobe
- Improved usability with minimal training required
More than 750 users have already adopted Nitro Sign, with expansion plans underway to 2,000.
Why Nitro Sign is the best eSign software for your business
While legacy providers dominate by name recognition, Nitro Sign wins on value, usability, and trust. Its combination of transparent pricing, enterprise-grade compliance, and effortless deployment makes it the smart eSign solution for modern businesses.
Why do organizations choose Nitro Sign?:
- Transparent, predictable pricing with no hidden fees or overages
- Only completed packages count toward allowances
- Enterprise-level security and global compliance certifications
- Simple, intuitive user experience for all departments
- Fast implementation with responsive support
- Scalable plans for every business size and industry
Nitro Sign delivers the reliability of an enterprise eSign tool without the inflated cost or complexity.
Start your free Nitro Sign trial. No credit card required.
FAQs about choosing the best eSign software
What is eSign software?
Why do I need eSign software for my business?
What are the main benefits of using eSign software?
Is an electronic signature legally binding?
How secure is eSign software?
Reputable eSign software is highly secure, using advanced encryption, tamper-evident seals, and detailed audit trails to protect documents and verify signer identity. This helps ensure the integrity and authenticity of every signed document.
What types of documents can I sign with eSign software?
What should I look for when choosing the best eSign software?
When selecting eSign software, consider factors like:
- Cost
- Ease of use
- Security features
- Legal compliance
- Integration capabilities with your existing systems
- Scalability for your business size
- Quality of customer support
Can I send documents for signature to multiple people?
Yes, most eSign software allows you to easily send documents to multiple recipients, specify the order of signing, and track the progress of each signature, making it ideal for multi-party agreements.
How does eSign software improve business efficiency?
Does eSign software integrate with other business applications?
Does Nitro Sign offer an API for custom integration?
Yes. The Nitro Sign API is a powerful tool designed for developers, enabling you to integrate our secure, legally compliant eSignature functionality directly into your own software, mobile apps, or internal business systems (CRM, ERP, etc.).
This allows you to automate high-volume document processes and deliver branded, seamless signing experiences.
What are the main use cases for the Nitro Sign API?
The Nitro Sign API is perfect for organizations that need to:
-
Automate Complex Workflows: Automatically trigger signature requests from your existing applications (e.g., sending an NDA when a prospect reaches a certain stage in Salesforce).
-
Embed Signing Experiences: Provide a white-labeled, in-app signing experience for customers, eliminating redirects and enhancing your brand experience.
-
Manage Documents at Scale: Programmatically create signature requests, track their status in real-time, and retrieve finalized documents and audit trails.
How does the Nitro Sign API compare to competitors like Docusign's API?
The Nitro Sign API offers comparable functionality, enterprise-grade security, and global compliance standards (eIDAS, ESIGN, UETA), but with a far more favorable pricing structure.
We focus on transparent, scalable usage models designed to support high-volume enterprise automation without the complex tiers, expensive add-ons, or punitive overage fees common with legacy API providers.
With Nitro Sign, you get the power you need without the inflated cost.
Try Nitro's simple, secure eSign tools today
Start your 14-day free trial. No credit card required, no features locked.