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This is a unified signing gateway that enables subscribers to initiate documents and create workflows for signing by multiple parties. The solution supports all signing options such as electronic signatures, PKI signatures, USB tokens, UID/Aadhaar based signatures.

Truesigner E-Signature Electronic Signing Service

It Works

  • You can subscribe to the portal or integrate the APIs in any system. 3 subscription plans are available.
  • It can be used to sign outbound documents from an ERP/CRM system in bulk.
  • It can also be used to create and save workflows. PDF files can be uploaded in bulk and workflow-based approval/signing can be set in motion.
  • If you are signing contracts, you can use the e-stamping feature to have a completely online contract signing process.
  • If you receive inbound signed files, you can auto-verify the digital signatures without opening the files.
  • Signing is done using electronic signatures, PKI-based signatures, or UID/Aadhaar based signatures. Signatures stored in Hardware Security Module (HSM) are also supported.


  • Simple to set up and easy to use.
  • Multiple types of signatures are supported, including electronic signatures, PKI signatures, UID / Aadhaar based signatures, DSC tokens
  • Workflows involving multiple signatories can be created and saved for subsequent reuse.
  • Seamless E-stamping on contracts.
  • Save time and effort by using templates.
  • Attach supporting documents to a workflow for reference.
  • Admin, Initiator, Approver and Signer roles are supported to cover all your workflow requirements.
  • Signer portal for signing documents in bulk.
  • Supports Bulk uploading of documents by Initiators.
  • APIs are available to easily integrate into your existing ERP/CRM systems.
  • Companies can automate bulk signing for invoices, purchase orders, credit / debit notes and so on.
  • Being a central signature server, APIs can be easily integrated into multiple calling applications. This solution can help eliminate the use the paper completely.
  • Multi-factor authentication ensures the security and traceability.
  • Highly scalable, high throughput. Supports high signature volumes.
  • Enterprise Signing
  • Workflow based signing
  • A dedicated signature appliance that supports REST based signing API.
  • API can be consumed from multiple applications including SAP/Oracle/Navision/Salesforce as well as any custom developed application in .NET/JAVA/PHP to invoke signing of documents.
  • The Signed document is returned to the calling system / ERP instantly in the API response.
  • Folder based interface for signing can be setup if API integration is not a suitable option.
  • Individual or Company’s PKI based signature certificates including HSM based certificates can be used for signing.
  • Comprehensive audit trail and logs as well as a repository of signed files is maintained on the signature server.
  • User management is performed via an admin portal.
  • Sample API calling code is shared with clients making the integration really straightforward and quick.
  • High Availability configuration supported.
Enterprise Signing
  • Users can sign up for an account which allows the user to initiate signing process.
  • Initiator can define workflows for repeated use.
  • Approvers can also be added to workflows.
  • Signers receive the link to sign the document in their email. On clicking, the signer can view the document and then sign after entering the valid OTP they receive on their cellphone. Signers do not need to have an account on the system.
  • Signers can also have their own accounts to log into and sign in bulk.
  • Signatories can either use cursive signatures or a scan of their signature and complete the signing.
  • System can be configured so that Signatories can use their UID / Aadhaar or DSC tokens for signing documents.
  • Once all signatures are affixed the signed document is sealed. The signed and sealed document is emailed to all the signers and a copy is available on the initiator portal as well.
Workflow Based Signing

Use Case

Signing documents like invoices, POs, challans, employment agreements, offer letters, and vendor contracts. Workflows-based approvals and signing of documents.