What is used to create digital signature — Practical eSignature Guide

TL;DR

Digital signatures are created using cryptographic keys and digital certificates that bind signer identity to a signed document; eSignatures can also be visual marks or typed names. Using signNow, organizations can upload documents, add signature fields, require authentication, send for signature, and store an auditable, encrypted copy. signNow supports HIPAA, ESIGN, and UETA compliance, TLS and AES encryption, templates, bulk send, and API integrations for automated workflows. This guide explains what technologies create a digital signature and how to complete, sign, and manage documents electronically with signNow.

What digital signatures are

A digital signature is a secure electronic mark created with cryptography that links a signer to a document and detects any post-signing change. In simple terms, imagine stamping a sealed envelope with a unique code only you and the recipient can verify; that code proves the envelope came from you and was not opened. Technically, digital signatures use private/public key pairs and digital certificates issued by trusted authorities. In eSignature platforms like signNow, these cryptographic elements can be managed behind the scenes so users focus on uploading documents, placing signature fields, and sending for signature.

Legal and operational rationale

Digital signatures provide legal authenticity and faster processing for business documents while reducing paper handling and storage costs. Use signNow when closing remote sales contracts or collecting employee onboarding signatures at scale to maintain compliance with ESIGN and UETA and to preserve an auditable record for disputes or audits.

Common challenges with digital signatures

• Confusing terminology between visual eSignatures and cryptographic digital signatures can lead to improper implementation and legal uncertainty.
• Poor authentication settings increase fraud risk; weak email-only verification can be insufficient for high-value agreements or regulated records.
• Inconsistent document preparation, such as missing required fields or conditional clauses, delays completion and creates compliance gaps.
• Failing to preserve an audit trail or tampering with signed files undermines evidentiary value and can result in rejected transactions.

Who uses digital signatures today

Organizations across industries rely on eSignatures to speed approvals, reduce costs, and maintain compliant records.

• Real Estate: leasing, purchase agreements, and disclosures executed remotely for faster closings.
• Healthcare and Finance: patient consent and tax forms signed electronically with HIPAA and regulatory safeguards.
• Education and Legal: enrollment forms, permissions, and client agreements collected without in-person meetings.

Many teams—from sales reps to legal counsels—use signNow workflows to send, sign, and store documents securely.

User personas and roles

IT Administrator

Manages account-wide security settings, SSO, API keys, and integrations. An IT Administrator configures authentication methods, enforces password policies, and reviews SOC 2 and ISO 27001 documentation to ensure the platform meets enterprise security needs.

HR Manager

Automates onboarding, sends offer letters, and collects employment forms. The HR Manager uses templates and bulk send features to process many new hires while maintaining auditable records and role-based access to sensitive employee data.

Security features and certifications

In transit encryption: TLS 1.2/1.3

At rest encryption: AES-256 encryption

Audit compliance: SOC 2 Type II

Privacy standards: GDPR, CCPA compliance

Healthcare support: HIPAA (BAA required)

Regulated records: 21 CFR Part 11 support

Risks of improper eSigning

Legal invalidation: Contracts may be unenforceable

Regulatory fines: Penalties for noncompliance

Data breaches: Exposure of personal data

Business disruption: Delayed transactions and revenue

Reputational harm: Loss of customer trust

Audit failures: Missing evidence for audits

Real-world signNow implementations

These examples show how signNow is used to complete and manage documents electronically across industries.

Tech Data (Bob Dutkowsky, CEO)

Tech Data integrated signNow to speed internal approvals and external customer signatures

• Bulk send and NetSuite integration streamlined workflows
• Faster invoice and contract processing reduced time-to-revenue

Leading to measurable operational speed improvements and improved customer satisfaction.

Martin Properties (Tim Martin, Founder)

Martin Properties deployed signNow for lease and closing documents to avoid in-person signings

• Mobile and offline signing enabled on-site execution
• Secure audit trails ensured compliance across transactions

Resulting in consistent compliant closings and faster property turnover.

Step-by-step: create a digital signature

Follow these clear, actionable steps in signNow to create, apply, and manage a digital signature on a document from upload to storage.

• 01
  Upload Your Document: Open signNow, click Upload, choose file from computer or cloud, and confirm import.
• 02
  Add Signature Fields: Open the editor, select Signature field, and drag it to required lines on the document.
• 03
  Assign Signers & Authentication: Enter signer emails, set signer order, and choose authentication (email, SMS, or 2FA).
• 04
  Send for Signing: Click Send, add message and reminders, then monitor completion and download the certified PDF.

How the signing process flows

A typical eSignature process in signNow moves from document preparation to signer verification and ends with secure storage and audit logging.

• Upload Document: Upload PDFs or Office files via web or mobile.
• Prepare Fields: Place signature, initial, date, and data fields.
• Send to Signers: Specify signers, authentication, and signing order.
• Manage Completion: Track status, enforce reminders, and archive final PDF.

Core features used to create signatures

Key platform features determine how digital signatures are created, validated, and preserved. These capabilities support secure, auditable workflows across use cases.

Audit Trail

Comprehensive event logs capture timestamps, IP addresses, and signer actions so every signature can be verified and defended during audits or disputes.

Bulk Send

Send identical documents to many recipients at once using Business Premium; automates mass signatures such as NDAs, policy acknowledgements, or enrollment forms.

Templates

Save reusable document templates with preplaced fields to accelerate repetitive processes like onboarding, contracts, and vendor agreements and to maintain consistency.

Mobile Signing

Native mobile apps for iOS and Android let signers complete forms on the go, supporting offline signing and later sync when connectivity returns.

Best practices for creating digital signatures

Applying consistent policies and clear document preparation reduces errors, speeds completion, and preserves legal defensibility when creating digital signatures.

Use strong signer authentication methods

Require multi-factor authentication or SMS verification for high-value or regulated transactions to ensure signer identity and reduce fraud risk.

Prepare documents with clear fields

Place explicit signature, date, and initial fields and provide instructions within the document to avoid signer confusion and incomplete submissions.

Maintain templates for repeat processes

Create and version templates for common agreements to streamline sending, ensure compliance, and reduce manual errors across teams.

Preserve and export audit records

Configure automatic archiving and export options for signed PDFs and audit trails to support legal requirements and internal recordkeeping.

Timing guidance for signature processes

Different document types require different turnaround expectations; set reminders and deadlines in signNow based on transaction urgency and regulatory needs.

01

Standard turnaround

3–7 business days for routine approvals.

02

Urgent signatures

24–48 hours when closing time-sensitive deals.

03

Regulatory filings

Align with statutory submission deadlines.

04

Retention triggers

Start retention timers once document is fully executed.

Common eSignature deadlines and retention

Set explicit dates for signature milestones and retention to ensure compliance and simplify audits; signNow supports reminders and archival scheduling.

Signature due within 7 days:

Send notice and three reminders before due date.

Execute by contract effective date:

Ensure all parties sign before the contract start date.

Retain signed records five years:

Follow internal retention policy or legal requirement.

HIPAA-related retention windows:

Maintain PHI records per health regulations.

Annual compliance review date:

Schedule audits and policy reviews yearly.

Advanced features that create digital signatures

Beyond core signing, several advanced capabilities affect how digital signatures are created, authenticated, and integrated into enterprise systems.

API Access

Full REST API enables programmatic document creation, field placement, sending, and retrieval for automated signature workflows.

Signer Authentication

Options include email, SMS code, and two-factor authentication to verify signer identity before allowing signature.

Conditional Fields

Show or hide fields based on prior answers to ensure only relevant data is collected during signing.

Payments Integration

Collect payments during signing when combined with payment connectors on Enterprise plans.

Kiosk Mode

Enable in-person signing on a shared device for on-site registrations or deliveries.

Single Sign-On

SSO support for centralized user management and secure account access control.

Managing audit trails and certificates

After signing, preserve cryptographic evidence, export certificates, and maintain audit logs to support legal validity and future verification.

01

Download Certificate:

Export signer certificate and verification data.

02

View Audit Trail:

Open document history to review events.

03

Export Signed PDF:

Download certified PDF for storage or sharing.

04

Set Retention Policy:

Apply document retention schedules automatically.

05

Revoke Access:

Disable links or access for compromised records.

06

Provide Evidence:

Share audit logs as legal proof when needed.

FAQs and common troubleshooting

This section addresses frequent questions and problems encountered when creating and managing digital signatures using signNow, with practical fixes and configuration tips.

• Why didn't the signer receive the email?
  Confirm the recipient address for typos, check spam folders, and verify that your account sending domain is authorized. If delivery still fails, resend the document or use SMS authentication to reach the signer.
• What if a signer can't complete verification?
  Ensure the chosen authentication method is supported and the signer has access to the verification channel. Switch to a different authentication option and resend the signing request if needed.
• How do I prove signature authenticity?
  Download the document's audit trail and certificate from signNow, which records IP addresses, timestamps, and authentication events to substantiate signature validity in disputes.
• Why is a signed PDF not showing signatures?
  Export the certified PDF from signNow; some viewers hide embedded signature metadata. Open with a compatible PDF reader to view cryptographic details and the audit summary.
• What causes API integration errors?
  Check API keys, request payloads, and rate limits. Validate authentication settings and consult signNow API logs for detailed error responses and remediation steps.
• How to enable HIPAA or 21 CFR support?
  Contact your account manager to add a Business Associate Agreement for HIPAA or enable 21 CFR Part 11 features available with Enterprise/Site License plans.

Timeline for an eSignature transaction

A clear timeline helps set expectations; this sequence covers preparation, sending, signing, and archival steps for typical signNow workflows.

01

Prepare Document

Upload and configure fields before sending.

02

Set Signer Order

Define sequential or parallel signing as required.

03

Choose Authentication

Select email, SMS, or 2FA options for signers.

04

Send Request

Dispatch signing invitations with instructions.

05

Monitor Progress

Use dashboard to track signer status.

06

Remind Signers

Schedule automated reminders for pending signers.

07

Finalize Document

Confirm completion and download certified copy.

08

Archive & Retain

Store final PDF and audit trail securely.

Supported platforms and requirements

signNow runs on web browsers, native mobile apps, and via API integrations to support desktop and mobile workflows.

• Web Browsers: Chrome, Edge, Safari
• Mobile OS: iOS, Android
• API Access: REST API support

For best performance use recent browser versions and the latest signNow mobile app; APIs require authenticated credentials and network access.

Recommended workflow settings

These default settings help standardize how documents are prepared, authenticated, and retained when using signNow in teams and enterprises.

Setting Name	Configuration
Signer Order	Sequential
Authentication Method	Email + SMS
Reminder Frequency	48 hours
Document Retention	5 years
Bulk Send Limit	Unlimited

Feature availability comparison

A quick comparison of core features across signNow, DocuSign, and Adobe Sign for common enterprise needs.

Feature	signNow	DocuSign	Adobe Sign
Bulk Send
Audit Trail
Mobile App
Envelope Limits	no cap	100/year	varies

Pricing and plan comparison (data as of May 2026)

Compare starting costs and key plan attributes across signNow and major competitors. All pricing reflects annual billing where applicable and is current as of May 2026.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$8/user/mo	$13/user/mo	$19/user/mo	$15/user/mo
Free Trial	7-day free trial	Varies by plan	Varies by plan	Varies by plan	Varies by plan
Bulk Send	Yes, Business Premium	Yes, select plans	Yes, select plans	Yes, paid plans	Yes, paid plans
Audit Trail	Yes, full audit trail	Yes, full audit trail	Yes, full audit trail	Yes, full audit trail	Yes, full audit trail
HIPAA Compliant	Yes, BAA required	Yes, BAA required	Yes, BAA required	Contact vendor	Contact vendor
Envelope Cap	No envelope cap	100 envelopes/year	Varies by plan	Varies by plan	Varies by plan