SignDex API v2.0 is now live. Read the release notes

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signdex

E-Signature Software for Businesses

Sign Contracts & Agreements With Confidence

Create, send, sign, and track documents with ease. Reaching a conclusion is hard enough—don’t get stuck on signatures.

  • As legally binding as handwritten signatures
  • Backed by local certification authorities (CAs)
  • Unlimited signer & document e-signing
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POST /api/v1/sign { "standard": "PAdES-LTV", "residency": "MY_Local" } AGREEMENT Sealed CRYPTOGRAPHIC Secure Seal

Trusted for regulated signing—across industries and geographies

PAdES-LTV

Tamper-evident

Audit Trail

Encryption

Data Residency

Headless API

Why SignDex?

Faster execution

Reduce turnaround time with guided signing, reminders, and automated routing—so approvals stop stalling.

Enterprise-ready signing

Embed signing into your workflows with APIs, webhooks, templates, and policy controls—built for scale.

Sovereignty & control

Keep documents and signing evidence localized to meet data residency requirements and GDPR principles.

Compliance & Security you can defend

Unlike other document management systems that merely add on signature services, we are dedicated to delivering the best eSigning experience possible.

Tamper-Evident Signed PDF (PAdES-LTV) Self-contained animated SVG mockup showing a signed PDF, PAdES-LTV validation, a moving trust flow, and a refined tamper-evident seal. Tamper-Evident Signed PDF (PAdES-LTV) SignDex Engine with Standards-Based PDF Signing. PDF DIGITAL SIGNATURE PAdES-LTV Validation Active Long-Term Validation for PDF.

PAdES-LTV support for standards-based PDF signing

Evidence Package & Audit Trail A cryptographically sealed, court-admissible record of all document events. Audit Trail ID: SDX-9824-001 Document Created System initiated signature request via API. 10 Mar 2026 • 09:00:15 UTC Signer Authenticated Identity verified via SMS OTP & eKYC. 10 Mar 2026 • 10:15:02 UTC Signature Applied Signed from IP: 192.168.1.42 (Chrome). 10 Mar 2026 • 10:18:45 UTC Evidence Sealed Cryptographic hash & PAdES-LTV applied. 10 Mar 2026 • 10:18:46 UTC

Audit trail with timestamps, signer actions, and document events

Configurable Identity Assurance Sleek, minimalist animated SVG showing configurable identity options flowing into the SignDex Policy Engine, resulting in a sealed, verifiable document. Identity Assurance Dynamic authentication flowing into tamper-evident integrity. Standard Link Email / Basic Advanced OTP SMS / Authenticator Qualified eID Biometric / Govt ID Policy Engine Integrity & Rules Audit Trail Sealed & Verifiable

Configurable identity assurance, consent, auditability, integrity control

Policy & Access Controls A stacked architectural diagram showing access controls filtering through a compliance gateway into a secure GDPR data residency vault. Policy & Access Controls Alignable with DSA 1997 & ECA 2006. Supports GDPR principles via secure residency. 01 // ACCESS & PERMISSIONS Role-Based Dynamic rules Geo-Fencing IP & Region locked Explicit Consent Verified agreements 02 // REGULATORY GATEWAY 03 // VAULT & RESIDENCY GDPR Compliant Residency Absolute local data sovereignty. ```

Alignable with DSA 1997 and ECA 2006 where relevant: supports GDPR principles via residency and access controls

Enterprise Legally Defensible & Residency-Aware Signing An architectural flow diagram showing an enterprise executive signing on a tablet, securely connecting to the SignDex server which provides compliance, privacy, and data residency. Ready for legally defensible, residency-aware signing? Enterprise workflows seamlessly routed through the SignDex Engine for ultimate trust and sovereignty. ENTERPRISE USER DIGITAL SIGNATURE SignDex Engine STATELESS PLATFORM OUTCOMES Legally Defensible eIDAS & ESIGN compliant Absolute Privacy Zero knowledge retention Data Residency Direct to BYOS vault Enterprise identity verified → Executed on device → Securely routed & sealed without vendor access

Bring your own S3 compliant Secure Object storage to meet data residency, privacy and sovereignty requirements.

Headless signing that fits your architecture

Trigger signing from your systems—without sending users to a separate tool.

API-first building blocks

  • Create signature requests via API
  • Track progress via webhooks/events
  • Retrieve sealed PDFs + evidence packages
  • Enforce policy rules per workflow and document type
View API docs
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Your App HRIS / CRM / ERP API SignDex Engine Signed PDF + Evidence CRYPTOGRAPHIC SEAL ECM / DMS / Archive SECURE VAULT

Key capabilities

Send for signature

Create requests in minutes with routing, reminders, and status tracking.

Approvals & workflows

Route documents for review and approval before final execution.

Templates & reusable forms

Standardize contracts and reduce errors with controlled templates.

Identity & authentication policies

Apply the right verification level per document type and risk.

Evidence, audit trail & reporting

Capture signing evidence and generate audit-ready logs for oversight.

Admin, roles & governance controls

Manage access, policies, retention, and organizational guardrails.

Industries & use cases

Built for teams where evidence, auditability, and data locality are non-negotiable.

Banking & Finance

Insurance

Healthcare

Public Sector

Real Estate

Procurement

Logistics

HR

Frequently Asked Questions

Everything you need to know about compliance, pricing, and integration.

What is SignDex?
SignDex is a secure digital signing platform that helps businesses send, sign, approve, and manage documents electronically.
Digital signatures and electronic signatures are legally recognised in many countries. However, legal acceptance may depend on the country, document type, signing method, and applicable regulations.
Yes. SignDex supports PDF document signing, allowing users to prepare, send, sign, approve, and download completed signed PDF documents.
Yes. SignDex supports multiple workflow types, including sequential signing, parallel signing, approval workflows, and quorum-based workflows.
No. SignDex supports guest signing, allowing external recipients to sign documents through a secure signing link.
Yes. SignDex is designed for business and enterprise users, with features such as user management, audit logs, workflow tracking, API integration, and configurable storage options.
Yes. SignDex supports REST API integration, allowing businesses to connect digital signing workflows with their own applications or systems.
SignDex documents are stored securely in cloud storage. For SaaS, documents are expected to be stored in Malaysia. Depending on the client company’s configuration, documents may also be stored in the client’s own S3 bucket.
Users can open the signed PDF using a PDF reader that supports digital signature validation to check whether the signature is valid and whether the document has been modified.
Yes. SignDex uses digital signature technology to help detect whether a signed PDF has been modified after signing.

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