Sign on your PC with a DSC USB token, straight from your ERP with ERP Connect, or automatically on your own Windows or Linux server with a PFX or HSM. Add Aadhaar eSign for signers without a DSC. Seven products, one platform, and your documents and keys stay on your own systems.
Enterprise-grade security and seamless integration
Server-side engines your ERP can call directly. From Postman testing to live in 2 days.
Private keys stay on your USB token, on your server or inside your HSM. Never with us.
Valid under the IT Act, 2000, with certificates from CCA-licensed CAs and Aadhaar eSign.
A Windows desktop app, plus server-side engines for Windows and Linux servers.
Sign with keys held in Utimaco and PKCS#11 HSMs. Only the document hash goes to the HSM.
PFX and HSM signing run entirely on your own server. Your documents are never uploaded to us.
Every signing is logged on your own server, so you always know what was signed and when.
The server engine runs in 1 vCPU and 1 GB RAM and holds several company certificates.
Signatures validate in Adobe's Document Message Bar — the way the current PDF specification (ISO 32000-2) requires — not as a fake tick image stamped onto the page, which the spec has deprecated since 2008.
Seamless integration with popular ERP platforms
ERP & S/4HANA
ERP Cloud
365 & Business Central
Prime & ERP 9
Books & CRM
Enterprise & Community
Oracle NetSuite
Any in-house system
Choose by where your signing key lives: on the signer's PC, on your server, inside your HSM, or with Aadhaar eSign
A person signs on their own Windows PC with a USB token or PFX
Windows app with six signing modes, from one document to whole folders
Client-side signing: click Sign in your ERP and sign on your PC with your own USB token
Your ERP signs for the company, with no one at the keyboard
Signing engine on your Windows server, with your company's Document Signer Certificate
The same signing engine as a native Linux binary, run as a systemd service
For companies whose policy keeps signing keys in a Hardware Security Module
Only the document hash goes to your HSM. The private key never leaves the device.
The same HSM signing for Linux servers, installed as a systemd service
For customers, vendors or staff who have no DSC
Signers verify with an Aadhaar OTP and sign through a CCA-licensed eSign Service Provider. The eSign app runs on your server, next to your ERP.
Your IT team tests on its own machine before anything goes to production
Install the engine on a test machine and sign sample PDFs with the Postman kit we send you.
Your developers connect the ERP using our integration guide and the Coordinate Picker.
Activate the production licence, register your company certificate once, and start signing.
Companies across logistics, manufacturing, chemicals, renewables, financial services and IT sign their documents with SuTan
"It is a very good experience to connect with you for Digital Sign solution. Your guidance & support helped us to understand the entire process. Your extensive support is highly appreciated & We would highly recommend the Sutantra solution services for digital sign solutions."
"SuTan Sign Desktop is easy to use, and signing our documents is now a very smooth and simple process. We are very happy with the product."
"Implementing SuTan for our digital signature requirements was seamless. The Server-side solution gave us the data control we needed and ERP integration saved significant manual effort across our finance team."
Secure, compliant digital signatures on your desktop, your servers and your ERP
Ready to elevate your ERP with enterprise-grade digital signatures? Contact us today.