Artigor Signer PKI — PKI-Based Digital Signing Solution

Artigor Signer PKI Architecture Diagram

Artigor Signer PKI is a PKI-based digital signing solution that enables secure, local digital signing of PDF documents via RESTful APIs. Designed for organizations requiring high-security document signing workflows, it supports HSM (Hardware Security Module), USB tokens, and cloud-based certificates.

Fully compliant with IT Act 2000 and eSign standards, Artigor Signer PKI provides cryptographic assurance, non-repudiation, and tamper-proof digital signatures — all within your local infrastructure.

Overview

Artigor Signer PKI allows applications to digitally sign PDF documents using Public Key Infrastructure (PKI) certificates stored in HSMs, USB tokens, or secure key stores. The solution exposes secure REST APIs that can be integrated into web applications, backend systems, ERP, HRMS, or document management platforms.

Unlike cloud-based eSign gateways, Artigor Signer PKI operates entirely on-premises, ensuring full control over private keys, compliance with data localization policies, and reduced dependency on third-party services.

Key Features

  • PKI-Based Digital Signatures

    Sign PDF documents using X.509 digital certificates issued by licensed Certifying Authorities (CAs).

  • HSM & USB Token Support

    Works with Hardware Security Modules (HSM) and USB cryptographic tokens for secure key storage.

  • REST API Integration

    Simple, secure REST APIs for seamless integration with existing applications and workflows.

  • Multi-Page & Batch Signing

    Sign single or multiple PDF pages, with support for bulk signing workflows.

  • Visible & Invisible Signatures

    Add visible signature blocks with custom text, images, and positioning, or use invisible signatures for background verification.

  • Timestamp Authority (TSA) Support

    Embed RFC 3161 compliant timestamps to ensure long-term signature validity.

  • PAdES & CAdES Compliance

    Supports PDF Advanced Electronic Signatures (PAdES) and CMS Advanced Electronic Signatures (CAdES) standards.

  • Audit Logs & Signature Verification

    Comprehensive logging of all signing activities with built-in signature verification APIs.

  • On-Premises Deployment

    Fully deployed on your infrastructure — no external dependencies, ensuring data sovereignty and control.

How It Works

  1. Certificate Setup

    Configure HSM or USB token with valid PKI certificates from licensed CAs.

  2. API Integration

    Integrate Artigor Signer PKI REST APIs into your application backend.

  3. Document Upload

    Send PDF documents to the signing service via secure API endpoints.

  4. Signature Generation

    The service applies PKI-based digital signatures using the configured certificate and returns the signed PDF.

  5. Verification & Archival

    Verify signed documents using built-in verification APIs and archive them securely.

Benefits of Artigor Signer PKI

  • Legal Validity

    Compliant with IT Act 2000, ensuring legally valid digital signatures in India.

  • Enhanced Security

    Private keys remain in HSM/USB tokens, providing hardware-level security and preventing key theft.

  • No Dependency on Third Parties

    Fully on-premises solution eliminates reliance on external eSign gateways and reduces recurring costs.

  • Scalable & Fast

    High-performance signing engine capable of handling thousands of signatures per day.

  • Custom Signature Appearance

    Configure signature appearance with company logo, signer details, and custom text.

  • Audit-Ready

    Detailed logs and audit trails for compliance with regulatory requirements.

Use Cases

  • HR Document Signing

    Digitally sign offer letters, appointment letters, and employee contracts.

  • Financial Documents

    Sign invoices, payment vouchers, and financial reports with PKI certificates.

  • Legal Agreements

    Sign NDAs, contracts, and legal agreements with legally valid digital signatures.

  • Government & Compliance

    Sign compliance reports, tender documents, and government submissions.

  • Internal Approvals

    Automate internal approval workflows with secure digital signatures.

Deployment & Integration

Artigor Signer PKI is available as an on-premises solution deployed on Windows or Linux servers. It integrates with existing applications through REST APIs, supporting JSON request/response formats for easy implementation.

The solution can be deployed as a standalone service or integrated with ERP, HRMS, CRM, and document management systems for end-to-end digital signing workflows.

Security & Compliance

  • IT Act 2000 Compliance

    Fully compliant with Indian digital signature regulations.

  • PAdES & CAdES Standards

    Adheres to international digital signature standards.

  • HSM-Grade Security

    Private keys stored in tamper-resistant hardware.

  • Encrypted Communication

    All API calls secured with TLS/SSL encryption.

  • Role-Based Access Control

    Restrict signing operations based on user roles and permissions.

Why Choose Artigor Signer PKI?

Artigor Signer PKI is ideal for organizations that require secure, compliant, and on-premises digital signing capabilities without relying on third-party eSign gateways. It provides complete control over signing infrastructure, reduces operational costs, and ensures data sovereignty.

Built with modern cryptographic standards and designed for high-volume signing workflows, Artigor Signer PKI is the trusted choice for enterprises, government organizations, and financial institutions.