Electronic Signature vs. Digital Signature: What’s the Difference & Which One You Actually Need

What is an Electronic Signature?

An electronic signature, or e-signature, is the digital equivalent of a handwritten signature on paper. The U.S. Electronic Signatures in Global and National Commerce (ESIGN) Act defines it as an 'electronic sound, symbol, or process, attached to or logically associated with a contract or other record and executed or adopted by a person with the intent to sign the record.' In simple terms, it's about proving intent. When you type your name at the bottom of an email, check an 'I agree' box, or draw your signature on a tablet, you are creating an electronic signature. The key is that the process captures your intent to be bound by the terms. For business use, a simple 'I agree' button isn't enough. You need a robust platform that creates a comprehensive audit trail, tracking who signed, when, where, and how, to ensure the signature is legally defensible.

What is a Digital Signature?

A digital signature is not the same as an e-signature; it’s a specific, highly secure type of e-signature. While an e-signature is about intent, a digital signature is about identity and integrity, using advanced cryptographic technology. Here’s how it works: A digital signature uses Public Key Infrastructure (PKI) to create two keys: a private key, which is known only to the signer, and a public key. When a document is signed, a unique cryptographic hash (a digital fingerprint of the document) is created and then encrypted with the signer's private key. This encrypted hash is the digital signature. Anyone with the public key can decrypt the signature and verify two things: 1) The signature was created by the owner of that private key (authenticity). 2) The document's hash hasn't changed, meaning the document has not been tampered with since it was signed (integrity).

Unbreakable Security

We don't just offer e-signatures; we secure them. Every document is sealed with a PKI-based digital signature, ensuring its integrity. With compliance like SOC 2, ISO 27001, and HIPAA, your data is protected with enterprise-grade security.

Ironclad Legal Compliance

Sign with confidence. eSignly complies with the US ESIGN Act, UETA, and EU's eIDAS regulation, making your documents legally binding in the US, Europe, and worldwide. Our detailed audit trails provide the proof you need.

Effortless User Experience

A tool is useless if no one uses it. eSignly is designed for simplicity. Send documents for signature in minutes, and your recipients can sign on any device with a single click—no account or download required.

Seamless API Integration

Automate your agreement workflows. Our powerful and well-documented REST API allows you to embed e-signature functionality directly into your own applications, CRMs, or websites. Get your first API document signed in under an hour.

Transparent ROI

Stop wasting money on paper, printing, and postage. Our customers reduce document turnaround time by up to 80% and save thousands in operational costs. eSignly is an investment in efficiency that pays for itself.

Global Scalability

Whether you're a startup or a Fortune 500 company, eSignly scales with you. From our free plan to our enterprise solutions, you get the features you need to grow your business, supported by a platform with 99.99% uptime.

24/7 Expert Support

Your business doesn't stop, and neither do we. Our global support team is available around the clock to help you with any questions, from simple setup to complex API integrations. We're here to ensure your success.

Advanced Workflow Automation

Go beyond the signature. Use our tools for bulk sending, creating reusable templates, and setting up complex signing orders. eSignly isn't just a signature tool; it's a complete document workflow automation platform.

Instant Document Turnaround

Why wait days or weeks for a signature? With eSignly, you can get contracts and agreements signed in minutes. Accelerate your sales cycles, onboard employees faster, and close deals while they're still hot.

For Sales Teams

Close deals faster by sending proposals, quotes, and contracts for immediate signature. Integrate with your CRM to automate contract generation and tracking, eliminating administrative work and letting your team focus on selling.

• Sales Contracts
• Proposals & Quotes
• NDAs
• Master Service Agreements (MSAs)

For HR Departments

Streamline the entire employee lifecycle, from hiring to offboarding. Send offer letters, policy updates, and benefits enrollment forms in bulk. Create a seamless, paperless onboarding experience for new hires, no matter where they are located.

• Offer Letters
• Employee Handbooks
• Tax Forms (W-4, W-9)
• Performance Reviews

For Legal & Operations

Ensure compliance and mitigate risk with secure, legally-binding signatures and comprehensive audit trails. Manage vendor agreements, internal approvals, and corporate filings with a centralized, searchable repository of all your critical documents.

• Vendor Agreements
• Compliance Documents
• Board Consents
• Change Orders

For Finance & Procurement

Accelerate financial processes by digitizing purchase orders, invoices, and expense reports. Create secure, auditable records for every transaction, simplifying compliance and speeding up your month-end close.

• Purchase Orders
• Invoice Processing
• Financing Agreements
• Audit Sign-offs

Legally Binding Worldwide

eSignly signatures are designed to be legally binding in most countries around the world. We comply with major regulations including the U.S. ESIGN Act, the Uniform Electronic Transactions Act (UETA), and the EU's eIDAS regulation.

Certified Security

Our commitment to security is verified by third-party audits. We are proud to be certified for ISO 27001 (Information Security Management) and SOC 2 Type II, ensuring our systems and processes meet the highest standards.

Data Encryption

Your data is protected at all times. We use AES-256 bit encryption for all documents at rest and TLS 1.2+ encryption for all data in transit, preventing any unauthorized access to your information.

Industry-Specific Compliance

We support the specific compliance needs of regulated industries. eSignly offers solutions to help you comply with HIPAA for healthcare, 21 CFR Part 11 for life sciences, and PCI DSS for payment information.

Tamper-Evident Sealing

Every signed document is sealed with a PKI-based digital signature. This cryptographic technology ensures that any alteration to the document after signing is immediately detectable, guaranteeing the integrity of your record.

Comprehensive Audit Trails

We provide a detailed, court-admissible audit trail for every transaction. This log contains a complete history of every action, including signer names, email addresses, IP addresses, and timestamps for every event in the document's lifecycle.

Is an electronic signature the same as a digital signature?

No. 'Electronic signature' is a broad legal term for any electronic indication of intent to agree. 'Digital signature' is a specific technology that uses cryptography to secure a document. All digital signatures are electronic signatures, but not all electronic signatures are digital signatures. eSignly combines both, offering an easy-to-use e-signature platform secured by digital signature technology.

Are eSignly signatures legally binding?

Yes. eSignly is compliant with the US ESIGN Act, UETA, and the EU's eIDAS regulation, among other international laws. This makes electronic signatures captured with eSignly legally valid and enforceable in court for the vast majority of business transactions.

Do my recipients need an eSignly account to sign a document?

No. Signers do not need to create an account, download any software, or pay anything. They simply receive an email with a secure link, click to open the document, and follow the easy on-screen instructions to sign on any device.

Can I be sure that the person signing is who they say they are?

Yes. We provide multiple layers of signer authentication. In addition to email verification, you can add SMS authentication (a code sent to their phone), Knowledge-Based Authentication (KBA), or require them to upload a government-issued ID for verification on our Enterprise plans.

What happens to my documents after they are signed?

Once a document is fully signed, all parties receive a final, tamper-sealed PDF copy. The document is also stored securely in your eSignly account, where you can access, download, or manage it at any time. Our secure cloud storage ensures your important agreements are safe and accessible.

Can I integrate eSignly with other tools I use, like Salesforce or my own app?

Absolutely. Our powerful REST API is designed for this exact purpose. You can integrate eSignly into almost any application to automate your document workflows from end to end. We provide extensive documentation, a sandbox environment, and developer support to help you get started.

What makes eSignly different from other e-signature providers?

We focus on providing the perfect balance of simplicity, security, and power. Many simple tools lack enterprise-grade security, while many powerful tools are too complex for everyday users. eSignly delivers an intuitive experience that your team will love, backed by the uncompromising security and compliance your business demands.

Is eSignly compliant with HIPAA and 21 CFR Part 11?

Yes. We offer enterprise-grade solutions that meet the stringent security requirements for HIPAA, 21 CFR Part 11, and other industry-specific regulations. Our platform provides the controls necessary for life sciences and healthcare organizations to remain compliant while digitizing their workflows.

How fast can I get started with the eSignly API?

Getting started is fast. Our API is built for developers, with extensive documentation and a dedicated sandbox environment. You can integrate our signing capabilities into your application in as little as 5 minutes. We prioritize ease of implementation so you can start automating your agreements immediately.

What is your refund or cancellation policy?

We value your peace of mind. We offer a pro-rata refund policy for our services if you find they don't meet your business needs (excluding misuse). We are confident in the value we provide and want to ensure you are completely satisfied with your investment.

Keystone Realty Group

The Challenge: A regional brokerage with 150 agents faced slow, paper-intensive closing processes, with document turnaround times averaging 7-10 days, jeopardizing fast-moving deals.

Clever Health

The Challenge: A telehealth startup needed a secure, HIPAA-compliant patient onboarding process to replace insecure email-based PDF forms that created significant compliance risks and friction.

SiteZeus

The Challenge: A global SaaS provider struggled with manual contract generation and approval processes that took over a week, creating bottlenecks for the sales team and legal department.

"eSignly delivered a clear ROI within the first quarter. The savings on printing, shipping, and administrative hours were immediate. More importantly, it accelerated our cash flow by getting sales contracts and purchase orders signed and processed in hours, not weeks."

"As a startup, we need to move fast and look professional. eSignly lets us do both. We can send investment documents and client contracts from our phones and get them signed instantly. It's an essential tool for any modern business."

"The security and compliance features were critical for us. eSignly's team understood our HIPAA requirements from day one. The API was robust and well-documented, which made the integration with our EMR system surprisingly straightforward. Rock-solid platform."

"Onboarding our remote employees used to be a nightmare of scanned documents and missed signatures. With eSignly's templates and bulk send feature, I can now onboard 20 new hires in the time it used to take for one. It's a lifesaver."

"The biggest benefit is speed. In sales, time kills deals. With eSignly, we can send a proposal and have it signed before the client's excitement cools. It has directly contributed to us closing deals faster and beating competitors."

"The detailed audit trail that accompanies every signed document is what sold us. It provides an undeniable, timestamped record of the entire signing process, giving us the legal defensibility we need for our high-value global contracts."

Prepare & Send

Upload your document (PDF, Word, etc.) or choose a template. Drag and drop the fields you need (signatures, initials, dates). Add your signer's email address and click 'Send'.

Signer Clicks & Signs

Your recipient receives a secure email link. They click to open the document on any device—no account needed. Our intuitive guide walks them through the signing process in seconds.

Secure & Store

Once everyone has signed, the document is automatically sealed with a tamper-proof digital signature. All parties receive a final copy, and the completed agreement is stored in your secure eSignly account.

AI-Powered Data Extraction

Imagine instantly turning a 50-page signed contract into a structured data set. Our future AI will automatically identify and extract key terms, dates, values, and obligations, making your agreements searchable and analyzable at scale.

Proactive Risk Analysis

Our platform will evolve to help you see what's coming. By analyzing thousands of your agreements, our AI will be able to flag non-standard clauses, identify potential risks, and alert you to upcoming renewal deadlines before they become emergencies.

Intelligent Workflow Automation

Beyond simple signing orders, we envision a future where the content of the agreement itself drives the workflow. For example, an AI could automatically route a contract with a value over $100k to the CFO for approval, without any manual setup required.

Legally Binding E-Signature Platform

Our core offering provides a simple, intuitive interface for uploading documents, adding signer fields, and sending them for signature via email. It's the fastest way to get your agreements signed without compromising on security or legality.

• Get documents signed in minutes, not days.
• Ensure compliance with global e-signature laws like ESIGN and eIDAS.
• Provide an easy, professional signing experience for your clients.

Advanced Digital Signature Security

Every e-signature captured through eSignly is automatically secured with a PKI-based digital signature. This creates a tamper-evident seal, ensuring that the document's integrity can be verified at any point in the future.

• Protect documents against any unauthorized alterations.
• Achieve a higher level of security than with simple electronic signatures.
• Gain peace of mind that your critical agreements are secure.

Comprehensive Audit Trail Generation

For every document, we generate a detailed, real-time audit trail that captures every action taken. This includes viewing, signing, and all signer details like IP address and timestamps, creating a robust, court-admissible record.

• Create a legally defensible record of the entire signing process.
• Resolve disputes quickly with undeniable proof of events.
• Maintain a clear chain of custody for compliance purposes.

Customizable Document Templates

Stop recreating the same documents over and over. Save any document as a reusable template, complete with pre-placed signature fields, to standardize your processes and send frequently used agreements in seconds.

• Save hours of administrative work each week.
• Ensure consistency and reduce errors in your agreements.
• Onboard new team members faster with standardized templates.

Bulk Sending & Mass Signatures

Need to send the same document to hundreds of recipients for their individual signature? Our bulk send feature lets you upload a list of signers and send personalized copies to all of them with a single click.

• Perfect for policy updates, permission slips, or annual compliance forms.
• Track the status of each individual recipient from a single dashboard.
• Eliminate the tedious manual work of sending documents one by one.

API-Driven Signature Workflows

Integrate eSignly's powerful signing capabilities directly into your business applications. Our REST API is built for developers to automate document generation, sending, and status tracking at scale.

• Create a seamless user experience within your own platform.
• Automate 100% of your agreement lifecycle.
• Build custom solutions tailored to your unique business needs.

HIPAA Compliant Signing Solutions

For healthcare organizations, we offer solutions that meet the stringent security and privacy requirements of HIPAA. Securely handle patient intake forms, consent forms, and other PHI with confidence.

• Ensure compliance with healthcare industry regulations.
• Protect sensitive patient health information (PHI).
• Sign a Business Associate Agreement (BAA) with us.

21 CFR Part 11 Compliant Workflows

For life sciences and pharmaceutical companies, we provide features required for 21 CFR Part 11 compliance, including signature manifestation, specific reason for signing, and strict authentication protocols.

• Meet FDA requirements for electronic records and signatures.
• Maintain data integrity in regulated environments.
• Streamline clinical trials and quality assurance documentation.

Branded Signing Experience

Customize the signing experience with your own company logo and brand colors. Reinforce your brand identity and create a trusted, professional experience for your signers from start to finish.

• Increase trust and signer confidence.
• Provide a seamless brand experience across all touchpoints.
• Differentiate your business from the competition.

Advanced Signer Authentication

For high-value transactions, add an extra layer of security with advanced signer authentication options. Verify identity using SMS passcodes, knowledge-based authentication (KBA), or government ID verification.

• Reduce the risk of fraud in critical agreements.
• Meet stricter identity verification requirements.
• Add layered security based on the value of the transaction.

In-Person & Remote Signing

Our platform supports all signing scenarios. Send documents to remote signers anywhere in the world, or use our in-person signing feature on a tablet or computer to capture signatures face-to-face.

• Flexible solution for field agents, front desks, or remote teams.
• Eliminate paper from every part of your business.
• Capture signatures immediately, without any delay.

Document Analytics & Reporting

Gain insights into your document workflows. Our dashboard provides real-time visibility into the status of all your documents, helping you identify bottlenecks and track key metrics like average signing time.

• Make data-driven decisions to optimize your processes.
• Proactively manage pending agreements.
• Monitor team performance and workload.

Secure Cloud Document Storage

All your signed documents are stored and archived in our secure, encrypted cloud repository. Access your important agreements anytime, anywhere, with the assurance that they are protected and preserved.

• Eliminate physical storage costs and clutter.
• Easily search and retrieve signed documents for audits or reference.
• Ensure long-term preservation of critical business records.

Cross-Platform Mobile Signing

Signers are on the go, and so is eSignly. Our platform is fully responsive, allowing anyone to sign documents on any device—desktop, tablet, or smartphone—with no app installation required.

• Accelerate signing times by meeting signers where they are.
• Remove friction for a better customer experience.
• Ensure accessibility for all your recipients.

Workflow Automation Builder

Design sophisticated document workflows with our visual builder. Define signing orders, set conditional logic for fields, and automate routing to ensure documents always go to the right person at the right time.

• Handle complex, multi-stage approval processes with ease.
• Reduce manual intervention and the potential for human error.
• Standardize your most critical business processes.

Free Plan

Ideal for: Individuals, freelancers, and micro-businesses with occasional signing needs.

• Basic e-signature functionality
• Limited number of document sends per month
• Secure document storage

Professional Plan

Ideal for: Small teams and professionals who need to send documents regularly.

• Everything in Free, plus:
• Unlimited document sending
• Reusable templates
• Basic branding

Business Plan

Ideal for: Growing businesses and departments that need automation and collaboration.

• Everything in Professional, plus:
• Team management and reporting
• Bulk sending
• In-person signing
• Advanced branding options

Enterprise Plan

Ideal for: Large organizations with complex security, compliance, and integration needs.

• Everything in Business, plus:
• Advanced authentication (SMS, KBA)
• Single Sign-On (SSO)
• HIPAA, 21 CFR Part 11 compliance options
• Dedicated account manager and premium support
• Full API access

API Plan

Ideal for: Businesses of any size wanting to embed e-signature functionality into their own apps or websites.

• Full REST API and webhook access
• Sandbox environment for development
• Detailed API documentation and developer support
• Pay-as-you-go or volume-based pricing