Digital Signature for Secure eSignatures
Award-winning eSignature solution
What a digital signature is
A digital signature is a cryptographic way to sign an electronic record and prove who signed it, when it was signed, and whether it changed afterward. It uses public key infrastructure, or PKI, to bind a signer’s identity to the document through a certificate and a hash. When the signer applies the signature, the system creates a tamper-evident seal. Recipients can verify the signature with the signer’s public key and confirm the record’s integrity and origin.
Why digital signatures matter
Digital signatures reduce paper handling, speed approvals, and create stronger evidence of intent. Under ESIGN and UETA, they can support enforceable electronic records when consent, attribution, and record retention are handled properly.
Common digital signature challenges
Signer identity can be weak if authentication relies only on email access or shared inboxes. Documents can lose evidentiary value when audit trails are incomplete or timestamps are missing. Teams may confuse a drawn signature with a cryptographic digital signature and miss integrity controls. Retention gaps can make it harder to prove compliance during disputes or audits.
Who uses digital signatures
Real estate
Real estate teams send leases, disclosures, and rental applications for remote signing.
Healthcare
Healthcare organizations collect patient forms, consents, and intake records with HIPAA-aware workflows.
Typical users and personas
Handles lease packets, disclosures, and renewal forms for property teams that need fast turnaround across office and mobile workflows. signNow customer stories in real estate often emphasize simpler signing for clients and fewer delays between listing, approval, and close. This role benefits from reusable templates and clear audit records for every transaction. Coordinates patient intake, consent forms, and internal approvals where HIPAA controls, BAA coverage, and access logging matter. Healthcare customer stories often focus on mobile signing and shorter turnaround for forms that move between front desk, clinical staff, and patients without paper handling.
Best ROI. Our customers achieve an average 7x ROI within the first six months.
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Intuitive UI and API. Sign and send documents from your apps in minutes.
Key digital signature features
Digital signatures add identity proof, integrity checks, and recordkeeping controls that support faster, more defensible electronic transactions.
Identity binding
Creates a cryptographic link between signer identity and the document, helping preserve integrity and non-repudiation across the full signing process.
Tamper evidence
Produces a tamper-evident record that shows whether the document changed after signing, which supports trust in electronic records.
Audit trail
Captures signer activity in a detailed audit trail, including timestamps and event history, for later review or dispute support.
Templates
Works with templates and reusable fields, so teams can send the same document structure without rebuilding each time.
Cross-device signing
Supports mobile and desktop signing, which helps people complete documents without printing, scanning, or mailing paper copies.
Controlled workflows
Fits controlled workflows where access, authentication, and retention need to align with U.S. compliance expectations.
How digital signatures work
A digital signature follows a fixed sequence that verifies identity, protects the file, and records each signing event.
Prepare record: The system hashes the document and prepares a signing package. Verify signer: The signer authenticates with the selected verification method. Sign document: The signature is applied and bound to the record. Seal and log: The platform seals the file and stores the event history.
Quick signing steps
Use a simple sequence to prepare, send, and store a signed record without paper handling.
Prepare file:
Upload the document and add the required fields. Set recipients:
Choose the signer order and delivery method. Send for signature:
Send the request and wait for completion. Archive record:
Review the signed file and store it securely.
Recommended workflow setup
Use a setup that balances signer verification, record integrity, and retention needs for U.S. business and regulated workflows.
| Setting | Recommendation |
|---|---|
| Authentication method | SMS OTP for routine approvals |
| Signature type | Cryptographic digital signature |
| Audit trail | Full event log with timestamps |
| Document retention | 6 years for HIPAA records |
| Encryption | TLS 1.2/1.3 and AES-256 |
Platform and device requirements
Digital signatures work in modern browsers and on mobile devices, with secure connections over TLS 1.2 or TLS 1.3.
Desktop browsers Chrome, Firefox, Safari, and Edge Operating systems Windows, macOS, iOS, and Android Mobile devices iPhone, iPad, and Android phones
For regulated deployments, managed devices, SSO, and API access can help align signing workflows with internal controls, retention rules, and certificate-based validation needs.
Security and compliance
Encryption:
Data storage:
Assurance:
Information security:
Healthcare use:
Regulated records:
Real-world digital signature examples
Customer stories show how signNow fits operational, compliance, and turnaround needs across different U.S. business settings.
Enterprise operations
A NetSuite operations leader needed tighter document routing across departments and formats.
- Xerox used signNow with NetSuite.
- Right document, right format, right signer.
The workflow reduced manual routing and helped the team match signatures to the correct documents through its NetSuite-connected process.
Real estate
A founder in property management needed online execution with mobile access and clear compliance records.
- Martin Properties signed documents online.
- Mobile and offline access mattered.
The process supported faster document completion and preserved a clear record of signing activity for property transactions and related approvals.
Best practices for digital signatures
A careful setup improves evidence quality, reduces signing errors, and keeps electronic records easier to defend in audits or disputes.
Match authentication to risk
Design clear templates
Define retention early
Check records after signing
FAQ and troubleshooting
These answers focus on plan limits, compliance requirements, and the controls that matter when digital signatures are used in U.S. workflows.
signNow Business includes legally binding eSignatures, audit trails, templates, and mobile apps. For HIPAA workflows, a BAA is required, and the record should retain access logs and integrity controls.
signNow supports HIPAA when a BAA is in place. The platform also lists SOC 2 Type II and ISO 27001, which helps support security reviews for covered entities and business associates.
The 7-day free trial has no credit card requirement. Paid plans start with Business at $8/user/month billed annually, and all paid plans include unlimited users at no extra cost.
For higher-assurance workflows, use stronger signer authentication and keep the audit trail complete. Under ESIGN and UETA, attribution and intent matter, so the record should show who signed, when, and how.
signNow’s Site License adds SSO, full API access, phone support, and HIPAA or 21 CFR Part 11 add-ons. That makes it the better fit for regulated or enterprise deployments.
For FDA-regulated records, 21 CFR Part 11 requires validation, secure audit trails, unique user IDs, and two-component signatures. signNow’s regulated-workflow features should be matched to the predicate-rule record type.
Vendor comparison for digital signatures
The table below compares core availability across leading vendors using concise, practical criteria for U.S. eSignature workflows.
| signNow | DocuSign | Adobe Sign | PandaDoc |
|---|---|---|---|
| ESIGN and UETA | Yes | Yes | Yes |
| Audit trail | Yes | Yes | Yes |
| HIPAA support | Yes | Yes | Yes |
| Envelope cap | Unlimited | 100/year | Varies |
Rollout and retention timeline
This timeline combines rollout milestones with retention and policy facts that matter for U.S. electronic records.
Day 0:
Day 1:
Week 1:
7-day trial:
HIPAA retention:
21 CFR Part 11:
ESIGN/UETA:
Site License:
Risks of improper use
Weak identity proof
Missing audit trail
Retention gaps
Part 11 failure
What the audit trail records
An audit trail shows the technical record behind each signature, from identity checks through exportable evidence.
Signer authentication:
Timestamp capture:
Document hashing:
Tamper-evident sealing:
Event logging:
Audit retrieval:
Pricing snapshot across vendors
Pricing and feature notes below use verified public data where available, with signNow listed first for direct comparison.
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free trial | 7 days | Not verified | Not verified | Not verified | Not verified |
| Bulk send | Business Premium | Not verified | Not verified | Not verified | Not verified |
| Audit trail | Included | Included | Included | Included | Included |
| HIPAA compliance | BAA required | BAA available | BAA available | Not verified | Not verified |
Key performance indicators that demonstrate SignNow's proven track record.