How is an advanced electronic signature obtained

TL;DR

An advanced electronic signature (AdES) is created by verifying signer identity, binding the signature to the signed data, and applying technical controls such as stronger authentication and tamper-evident cryptography. In U.S. practice, platforms like signNow support compliant eSign workflows under ESIGN and UETA, offer secure storage, audit trails, and signer authentication options. Practical steps include preparing a fillable document, assigning signature fields, selecting signer authentication, sending for signature, and storing the signed record with audit metadata.

What an advanced electronic signature is

An advanced electronic signature is a secure, verifiable digital signature that links a signer to specific document content and shows if the document changed afterward. Think of it as a sealed envelope with a unique tamper-evident lock and a sign-in check before the lock is put on. In practical terms, an AdES uses stronger signer authentication, binding of signature data to the document, and audit metadata to provide higher assurance than a simple typed name or image signature.

Legal basis and business reasons

Advanced eSignatures provide higher assurance of signer identity and document integrity and help organizations meet ESIGN and UETA requirements in the United States while reducing paper handling and turnaround time.

Common implementation challenges

• Identity verification complexity can slow workflows when relying on strict proofing or third-party identity providers, increasing signer friction.
• Integration work may require API and developer resources to map signer roles, templates, and data fields into existing ERP or CRM systems.
• Regulatory differences across industries can require additional agreements like a BAA for HIPAA or 21 CFR Part 11 controls for FDA-regulated records.
• User training and change management are needed to avoid incorrect field placement or missing signer authentication, which can void evidentiary value.

Who uses advanced eSignatures

Organizations across real estate, healthcare, finance, legal, and education rely on advanced eSignatures to speed approvals and maintain compliance.

• Real estate brokers completing leases and closing documents remotely, reducing in-person closings and delays.
• Healthcare providers collecting HIPAA-compliant patient consents and intake forms with identity checks.
• Finance and legal teams signing contracts and notarized documents needing stronger evidentiary support.

Typical user profiles

IT Administrator

An IT administrator configures SSO, manages API keys, and enforces authentication policies. They map signNow into the company directory, ensure TLS and encryption settings, and set retention and audit controls to meet security and compliance needs.

Legal Counsel

Legal counsel defines signature workflows, approves signer authentication levels, and documents admissibility requirements. They work with business users to create templates, set signing order, and preserve audit trails for dispute readiness and regulatory retention.

Security and compliance features

Encryption in transit: TLS 1.2/1.3

Encryption at rest: AES-256 encryption

SOC 2 Type II: Report available on request

HIPAA support: Compliant with BAA

21 CFR Part 11: Supported controls available

ISO 27001: Certified information security

Risks of weak eSignature controls

Contract disputes: Higher litigation risk

Regulatory fines: Possible penalties

Data breaches: Compromised PHI or PII

Invalid signatures: Legal unenforceability risk

Operational delays: Rework and manual fixes

Reputational harm: Customer trust loss

Real-world examples

Customer stories demonstrate practical AdES adoption across industries and how signNow supports secure workflows.

Optica Ventures (COO Brian Fitzgibbons)

Optica deployed online signing for investor and customer forms to simplify transactions

• Uses signNow interface for straightforward signing and mobile access
• Reduced turnaround and confusion for external signers

Resulting in faster execution and higher customer satisfaction for remote deals.

Xerox (Director Kodi-Marie Evans)

Xerox integrates eSignature into NetSuite to automate signature collection across finance and procurement

• signNow API connects documents to ERP processes
• Integration removes manual handoffs and ensures accurate record keeping

Leading to fewer errors and faster invoice and contract cycles.

Step-by-step AdES setup

Follow these clear actions to prepare, obtain, and manage an advanced electronic signature using signNow.

• 01
  Upload Document: Open signNow, click Upload, and select the file from your device or cloud storage to import.
• 02
  Add Fields: Drag signature, initial, date, and data fields onto the document where each signer must act.
• 03
  Configure Authentication: Select signer authentication like email, SMS code, or two-factor to verify identity before signing.
• 04
  Send for Signing: Use Send for Signature, set signing order, and notify recipients with a customized message and deadline.

How the signing flow works

A typical advanced eSignature flow involves preparing the document, verifying signers, collecting signatures, and securing the final record.

• Prepare Document: Upload and create fillable fields, assign signer roles and required inputs.
• Verify Identity: Choose authentication methods like SMS code, email, or third-party ID verification.
• Collect Signatures: Send signature requests and track recipient actions in real time through signNow.
• Secure Record: Finalize signed PDF, capture audit trail, and store with encryption and retention settings.

Core advanced eSignature capabilities

Advanced eSignature solutions include stronger authentication, tamper evidence, secure storage, and verifiable audit trails to ensure admissibility and integrity.

Strong authentication

Options such as SMS one-time passcodes, email verification, two-factor authentication, and conditional signer verification reduce impersonation risk and link identity to the signature.

Tamper-evident sealing

Signed documents are cryptographically bound to signature metadata so any post-signing change invalidates the signature and is visible in the audit record.

Audit trail

A detailed timestamped history of every action, IP addresses, device data, and authentication events supports dispute resolution and regulatory review when needed.

Secure storage

Encrypted at-rest storage, access controls, and configurable retention policies reduce data exposure and support compliance obligations like HIPAA or 21 CFR Part 11.

Best practices for reliable AdES

Adopt consistent template, authentication, and retention policies to ensure signatures are valid, auditable, and easy to manage.

Standardize templates and fields across teams

Create and maintain approved templates for common documents, ensure consistent field placement, required fields, and signer roles to reduce errors and speed processing.

Apply appropriate authentication per document risk

Use simple email verification for low-risk forms and stronger multi-factor verification or ID proofing for high-risk contracts or regulated records.

Preserve complete audit trails and metadata

Keep signed PDFs with embedded audit logs and system metadata to support legal defensibility, version control, and regulatory audits.

Train users and monitor workflows

Provide role-based training for senders and administrators, monitor completion rates, and tune reminders and timeouts to reduce incomplete transactions.

Timing and deadlines considerations

Setting clear deadlines and reminders improves completion rates and helps meet business SLAs for signature collection.

01

Default sign-by period

Set a standard 7–30 day signer window based on document urgency.

02

Reminder cadence

Send automated reminders at configurable intervals such as 48 hours and 7 days.

03

Escalation rules

Automatically notify managers or administrators after missed deadlines.

04

Document expiration

Expire requests after a set period to prevent stale signatures.

Typical retention and processing timeframes

Retention and processing windows vary by use case and regulation; align policies with legal and operational requirements.

Short-term processing window:

Signing usually completes within 24–72 hours for active recipients.

Default retention policy:

Keep signed records a minimum of 3–7 years based on business rules.

HIPAA retention considerations:

Follow organizational medical record retention policies for PHI.

Regulated records:

Follow 21 CFR Part 11 guidance for audit and retention controls.

Long-term archival:

Move older signed records to secure cold storage with preserved metadata.

Advanced features and extensions

Beyond basics, advanced eSignature platforms provide integrations, automation, conditional logic, and developer APIs to embed signatures into enterprise processes.

Conditional fields

Show or hide fields based on prior responses to reduce errors and capture only relevant signer data.

Bulk send

Dispatch the same document to many recipients while personalizing fields and tracking each signer's progress separately.

Payments integration

Collect payments within signing workflows for invoices, orders, and consent-related fees with payment gateway links.

Kiosk mode

Enable in-person signing on a shared device with simplified session controls and offline support.

Advanced authentication

Support multi-factor methods and third-party identity proofing for high-assurance signatures.

Developer API

Automate document creation, sending, and retrieval via REST APIs for deep enterprise integrations.

Manage audit trail and evidence

Use these steps to ensure each signed document has the metadata and evidence required for legal and regulatory review.

01

Enable Audit Logs:

Turn on detailed logging for signer events.

02

Capture Metadata:

Record timestamps, IP addresses, and device info.

03

Embed Certificate:

Attach a signed certificate to the PDF.

04

Export Logs:

Download activity reports for audits.

05

Preserve Originals:

Archive the original pre-sign document version.

06

Maintain Chain:

Keep signer order and evidence linked continuously.

FAQs and troubleshooting

Common issues arise from authentication setup, field placement, or recipient access; the following FAQs address frequent situations and remedies.

• Why didn't the signer receive the request?
  Confirm the recipient email address is correct, check spam folders, and verify sending limits. If using bulk send, ensure the correct CSV mapping and that the plan supports bulk actions.
• How to fix missing signature fields?
  Open the document in the editor, add required Signature and Initial fields, and re-send. Verify role assignments so each recipient sees their fields and check template defaults for hidden fields.
• What to do when authentication fails?
  Review the authentication method chosen (email, SMS, 2FA), confirm the recipient has access to the phone or email, and consider switching to an alternate stronger method if needed.
• Why is the signed PDF not showing audit data?
  Ensure Audit Trail embedding is enabled at send time; export the signNow audit report separately if embedded metadata is not visible in the viewer.
• How to handle compliance requests for records?
  Use signNow's administrative export capabilities to retrieve signed documents and audit logs, and provide those with appropriate chain-of-custody notes for legal or regulatory review.
• What if a signer denies their signature later?
  Preserve all logs, authentication records, and document versions; coordinate with legal counsel and provide the full signNow audit record as evidence of signer actions.

Lifecycle steps and timing

Map out lifecycle stages from draft to archival to ensure predictable processing and governance.

01

Draft creation

Create or import document, prepare template fields, and set default validations.

02

Authentication selection

Choose method per signer risk profile prior to sending.

03

Send and notify

Deliver signature request with custom message and deadline.

04

Reminders sent

Automated reminders trigger at configured intervals.

05

Signers complete

Recipients authenticate and apply signatures in sequence or parallel.

06

Finalize document

System applies tamper-evident sealing and embeds audit data.

07

Store securely

Move signed document to encrypted storage with retention.

08

Archive or delete

Apply retention rules and delete when legally permitted.

Platform access and device support

Advanced eSignatures are accessible via web browsers, mobile apps, and APIs and should support desktop and mobile workflows.

• Web browser: Chrome, Edge, Firefox
• Mobile apps: iOS and Android
• API access: RESTful endpoints

Ensure platform compatibility with your SSO, directory services, and mobile device management; signNow supports major browsers, native mobile apps, and developer APIs for deep integration and enterprise deployment.

Typical workflow configuration

These settings reflect a common enterprise configuration for obtaining advanced eSignatures with signNow.

Feature	Value
Reminder Frequency	48 hours
Authentication Method	SMS code
Signing Order	Sequential
Template Library Location	Shared team folder
Data Retention Period	7 years

Feature comparison overview

At-a-glance comparison of common advanced eSignature features across signNow, DocuSign, and Adobe Sign for enterprise decision-making.

Feature	signNow	DocuSign	Adobe Sign
SSO available
API available
Bulk send	yes on premium
Envelope cap	no cap	100 envelopes/year	no cap

Pricing and feature snapshot

Data as of May 2026. Quick reference for starting prices, trials, and key feature availability across signNow and major competitors.

	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, no CC	30-day trial typical	7-day trial typical	14-day trial typical	14-day trial typical
Bulk Send	Yes (Premium plan)	Yes	Yes	Yes	Yes
Audit Trail	Yes, full audit trail	Yes, full audit trail	Yes, full audit trail	Yes	Yes
HIPAA Compliant	Yes, BAA required	Yes, BAA available	Yes, BAA available	Contact vendor	Contact vendor
Envelope Cap	No cap	100 envelopes/user/year	No cap	No cap	No cap