signer.digital Enterprise Server
(Bridge Application/SOAP APIs)

PDF Digital Signature API with REST API Web Services and SOAP and REST Web Services

Signer.Digital provides an enterprise-grade PDF Digital Signature API designed for seamless integration with ERP, SAP, banking, taxation, insurance, and enterprise applications. Our platform supports secure and scalable REST API Web Services and SOAP and REST Web Services for real-time document signing, automated workflows, and bulk PDF processing.

Whether your organization requires server-based signing, remote signing, HSM integration, or high-volume document processing, Signer.Digital APIs enable developers to integrate digital signing capabilities directly into existing applications with minimal effort. The solution supports Windows, Linux, and cloud environments, making it ideal for modern enterprise infrastructures.

signer.digital Enterprise Server
(Bridge Application with Built-in SOAP APIs)

Signer.Digital Server runs as Service on Windows Server and Signer.Digital Console can connect to this service across LAN or WAN to control and monitor the service.

Apart from being Management and Monitoring tool for Server, Signer.Digital Console can be used by users to sign documents & files locally and can also act as Remote Signing client for signer.digital Server wherein, user can use local DSC from USB Token to check and sign document & file on the server Remotely.

signer.digital Enterprise Server solution supports multiple source for Digital Signature Certificate like on-premise/DC/DR HSM, Multi-Tenant HSM Service by ‘Kluis’, remote Client USB Token, USB Token on Server or PFX File on server.

PDF Digital Signature API for Enterprise Applications

Signer.Digital provides a powerful and scalable PDF Digital Signature API that enables organizations to integrate digital signing capabilities directly into their business applications. The API is designed for enterprises that require automated, secure, and legally compliant document signing without manual intervention.

Our API seamlessly integrates with ERP systems, SAP applications, GST platforms, banking solutions, insurance applications, and custom enterprise software. Developers can initiate document signing requests programmatically, receive signed PDF documents instantly, and automate complete document workflows.

Benefits:

Automate document signing processes
Eliminate manual intervention
Integrate with ERP, SAP, and enterprise applications
Secure and legally compliant digital signatures
High-performance processing for large document volumes
Support for USB Tokens, HSM, and Cloud HSM

Quick Benefits

Real Time Signing

Legally Valid

Cost Effective

Saves Environment

Boosts Productivity

Encrypts Files

Quickly Scalable

Integrable

How it Works

Click to enlarge Image.

These are some examples of workflow, more complex, multi level and customized workflows can be designed in few clicks.

REST API Web Services for Modern Applications

Signer.Digital provides modern and lightweight REST API Web Services that allow developers to integrate PDF signing functionality into web applications, mobile applications, and cloud platforms with minimal effort.

Using standard HTTP methods and JSON payloads, applications can securely upload documents, initiate signing requests, monitor signing status, and download signed documents in real time. The REST architecture makes integration simple, scalable, and platform-independent.

Features:

JSON-based communication
Secure HTTPS transmission
Real-time signing response
Easy integration with .NET, Java, PHP, Python, and Node.js
Stateless architecture for better scalability
Cloud and on-premise deployment support

What's in Store

On Click Signing
Single Page Document
Multi Page Document
Multiple Sign on Single Document
Predefined Signing Position
USB Token Support
PFX File Support
Dashboard (Profile Details)
Bulk Document Signing
Printing (after signing)
Transaction Logs
Interactive Signing (Local)
User Management
Sign at Search Position
Auto Signing (Real-Time Signing)
HSM API/Kluis API
Password Protection for Signed File
eMailing (after signing)
Signing From Remote Location
Signing Workflow
Pre-Processes
Post-Processes
File Support (JSON/XML/Text/Doc)
QR Code/BAR Code Support
Singing Remarks (Any Language Supported by OS)
File Name Pre/Post-Fix

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SOAP and REST Web Services for Maximum Compatibility

Many enterprises continue to operate legacy systems alongside modern applications. Signer.Digital supports both SOAP and REST Web Services, allowing organizations to integrate digital signing capabilities regardless of their technology stack.

SOAP services provide robust support for enterprise systems requiring XML-based communication and strict contract definitions, while REST services offer lightweight and high-performance integration for modern applications.

Supported Technologies:

.NET Applications
Java Applications
SAP Systems
Oracle Applications
ERP Platforms
Government Applications
Legacy Enterprise Software

signer.digital Enterprise Server add-on Modules

Remote Singing & Workflow Module

Remote Signing profiles may be cascaded to create Work-Flow for chain of approvals required from process owners, managers, authorized signatories for documents or files like purchase orders or license, NPCI format files, PDF, JASON or XML files etc.

Multi-Threading Module

Profile-wise configurable multithreading helps handle Gigantic Work Loads only limited by your Server hardware. signer.digital solutions are tested for 0.2 million+ signatures per hour using on-premise HSM.

Timestamping Module

signer.digital by default time stamp all signatures with server or local machine time signatures, if required, time stamping also can be integrated using a timestamping server API through third-party timestamping service to ensure proof of integrity.

Pre & Post Processing Modules

Processing like Split Documents, Merge Document, additional eMail Attachment, Sign at Text Search Location, Password Protection, Auto eMail and Printing.

HSM Module

Apart from native HSM support, Signer.Digital provides portal for configuring Kluis Profiles for document & file signing from Signer.Digital Server or Console.