Digital Signature Wikipedia for SignNow
Award-winning eSignature solution
What a digital signature is
A digital signature is a cryptographic method for signing electronic records with a verifiable identity and integrity check. It uses a public and private key pair to create a signature tied to the document’s contents, so any later change can be detected. In U.S. business use, it helps confirm who signed, when they signed, and whether the file stayed intact. Platforms like signNow combine signing, authentication, and audit records in one workflow.
Why digital signatures matter
Digital signatures reduce paper handling, speed approvals, and create evidence that supports enforceability under ESIGN and UETA. For U.S. organizations, that can mean faster contract turnaround, clearer recordkeeping, and a stronger audit record if a signature is later questioned.
Common digital signature issues
Signer confusion can happen when the process mixes drawn signatures, digital certificates, and simple electronic signatures without clear instructions. Weak authentication can make it harder to prove who actually signed, especially for higher-risk transactions or regulated records. Missing audit details can leave gaps in evidence about timestamps, identity checks, and document changes. Poor retention practices can make signed records hard to retrieve during audits, disputes, or compliance reviews.
Who uses digital signatures
Real estate
Real estate teams use digital signatures for leases, disclosures, and rental applications that need fast turnaround.
Healthcare
Healthcare organizations use them for patient forms, consent records, and HIPAA-related workflows with audit trails.
People who benefit most
A director of NetSuite operations at Xerox uses signNow to route the right documents to the right approvers through an integrated workflow. That matters when signature order, document format, and system handoff all need to stay consistent across finance and operations teams. A founder at Martin Properties uses signNow to execute documents online with mobile access and built-in security. That fits lease packets, rental paperwork, and other property documents that need fast completion without in-person meetings or paper handling.
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Core features and benefits
signNow combines signing, tracking, and document control so teams can manage electronic records with less manual follow-up.
Identity proof
Create signed records with identity checks, timestamps, and tamper-evident history that support later review or dispute handling.
Mobile signing
Send documents from desktop or mobile so signers can complete records without printing, scanning, or mailing.
Audit trail
Track every action in one record, including views, signatures, and completion status for easier oversight.
Templates
Use templates for repeat forms to reduce manual setup and keep document fields consistent across teams.
Routing
Collect signatures in sequence or in parallel when multiple people must sign the same document.
Record access
Store completed files with searchable records so teams can retrieve signed documents when needed.
How digital signatures work
A digital signature follows a clear sequence from document delivery to final record storage.
Open document: The signer opens the document and reviews the request. Verify identity: Identity is verified with the chosen authentication method. Sign record: The signer applies the electronic signature to the file. Save evidence: The system stores the completed document and audit trail.
Quick signing steps
Use a simple workflow to prepare, send, sign, and store documents with less manual coordination.
Prepare file:
Upload the document and add signature fields. Set routing:
Choose the signer order and set reminders. Send request:
Send the request through signNow. Archive record:
Review the completed file and archive it.
Recommended workflow setup
A practical setup balances identity proof, record integrity, and retention needs for U.S. business and regulated workflows.
| Setting | Recommendation |
|---|---|
| Authentication method | SMS OTP for routine transactions |
| Signature type | Electronic signature with audit trail |
| Audit trail | Full event log with timestamps |
| Document retention | 6 years for HIPAA records |
| Encryption | TLS 1.2/1.3 and AES-256 |
Browser and device support
signNow works across major browsers and mobile platforms, with secure web access for desktop users and app support for mobile signing. TLS 1.2 or newer is the expected transport layer for secure sessions, and mobile workflows are available on iOS and Android.
Desktop browsers Chrome, Firefox, Edge, and Safari Operating systems Windows, macOS, iOS, and Android Mobile devices iPhone, iPad, and Android phones
For enterprise deployments, managed devices, SSO provisioning, and API access matter more than the browser alone. Teams should confirm browser policy, mobile device management, and retention settings before rollout, especially when handling HIPAA, FERPA, or other regulated records.
Security and compliance
Encryption:
Storage protection:
Independent controls:
Security management:
Healthcare compliance:
Privacy and trust:
Real-world use cases
Customer examples show how signNow fits operational, compliance, and document-routing needs across different industries.
Operations workflow
A Xerox operations leader needed flexible routing across systems.
- NetSuite integration kept document flow aligned.
- Right signatures reached the right documents.
The workflow reduced manual handoffs and supported document control across integrated business systems.
Real estate
A Martin Properties founder needed online execution with security.
- Mobile signing supported work away from the office.
- Built-in security helped maintain compliance.
The process supported faster completion of property documents while keeping records organized for later review.
Best practices for setup
A careful setup improves signer experience, record quality, and the usefulness of the audit trail during reviews or disputes.
Match authentication to risk
Reduce signer friction
Preserve evidence with records
Limit access by role
FAQ and troubleshooting
These answers focus on plan limits, compliance needs, and recordkeeping questions that affect real signing workflows.
signNow Business includes audit trails, templates, and mobile apps. If a document still looks incomplete, check whether required fields were placed before sending and whether the signer finished every step.
For HIPAA workflows, signNow supports HIPAA compliance with a BAA. Make sure the account has the proper agreement in place before handling PHI, and keep signed records for 6 years under 45 CFR 164.530(j)(2).
If a signer cannot access the document, verify the email address, resend the request, and confirm that the signer’s browser or mobile app supports the session. signNow works across Chrome, Firefox, Safari, Edge, iOS, and Android.
If you need stronger proof of identity, use a higher authentication method before signing. signNow workflows can be paired with stronger controls, and regulated use cases may require evidence that supports ESIGN, UETA, or 21 CFR Part 11.
For bulk sending, Business Premium includes bulk send. If that feature is missing, confirm the plan tier and account permissions before starting the workflow.
If you need a defensible record, export the completed file with its audit trail. The audit log helps show who signed, when they signed, and what changed, which supports ESIGN and UETA evidence needs.
Vendor comparison
The table below compares widely used eSignature vendors on a few practical features that affect U.S. document workflows.
| Recommended | DocuSign | Adobe Acrobat Sign | PandaDoc |
|---|---|---|---|
| Audit trails | Yes | Yes | Yes |
| HIPAA support | Yes | Yes | Yes |
| Envelope cap | No cap | 100/yr | Not verified |
| Starting price | $8/user/mo | $15/user/mo | $14/user/mo |
Rollout and retention timeline
This timeline combines adoption milestones with retention and policy facts that matter for U.S. compliance planning.
Day 1:
Day 2:
Week 1:
7-day trial:
HIPAA retention:
ESIGN/UETA:
Part 11 records:
Enterprise rollout:
Risks of improper use
Weak attribution
Missing audit trail
Retention gap
Identity gap
Inside the audit trail
The audit trail records the technical evidence behind each signature event, from identity checks to exportable history.
Signer authentication:
Timestamp capture:
Document hashing:
Tamper-evident sealing:
Audit record storage:
Audit export:
Pricing and plan comparison
Pricing and feature availability vary by vendor and plan tier, so the table below focuses on verified entry-level details.
| Plan / Feature | signNow | DocuSign | Adobe Sign | PandaDoc | |
|---|---|---|---|---|---|
| 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 | Yes, Business Premium | Not verified | Not verified | Not verified | Not verified |
| Audit trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA compliance | Yes, BAA required | Yes, BAA required | Yes, BAA required | Not verified | Not verified |
Key performance indicators that demonstrate SignNow's proven track record.