Digital signature software for secure, instant signing.
The complete electronic signature solution and digital signature API for Indian businesses. Aadhaar eSign API, online document signing platform, and DSC document signing software, all in one place.
Aadhaar eSign ReadyDocuments Signed
PDFs signed through our platform
Organizations
Businesses trust SignSecure
Uptime
Enterprise-grade reliability
Signing Speed
Average time to sign a document
One platform, four powerful products
From web-based signing to desktop batch processing to developer APIs, SignSecure has the right electronic signature solution for every signing workflow.
SignPad
Document Signing Platform
Upload PDFs, add signers, drag-drop signature fields, and send for legally binding digital signatures. Supports electronic, Aadhaar OTP, and DSC USB token signing.
Key capabilities
Built for security, designed for speed
Every feature is designed to make document signing faster, more secure, and fully compliant with Indian regulations.
Bank-Grade Security
AES-256 encryption for all documents. Private keys never leave the user's device. S3 server-side encryption at rest.
Legally Valid in India
Fully compliant with the IT Act 2000 and Indian Evidence Act. Aadhaar OTP eSign produces legally binding signatures.
Three Signature Methods
Electronic signatures for speed, Aadhaar OTP for legal binding, and DSC USB tokens for high-assurance document signing.
Lightning Fast
Sign thousands of documents in minutes with batch signing. Average single-document signing takes under 2 seconds.
Multi-Platform
Web-based SaaS, Windows desktop app, REST API, and browser bridge. Choose the right tool for your workflow.
Automated Workflows
Watch folders for auto-signing, webhook events for real-time notifications, and API integration for custom workflows.
Sign documents in four simple steps
From upload to a fully signed, legally binding document in minutes.
Upload Your Documents
Upload PDFs to SignPad or drop them into a SignBolt watch folder. Create an envelope with one or multiple documents.
Add Recipients
Add signers with their email addresses. Set signing order (sequential or parallel) and choose signature method per recipient.
Place Signature Fields
Drag and drop signature, date, text, and checkbox fields onto the PDF. Position them precisely where signatures are needed.
Send & Track
Send for signing with one click. Recipients get email notifications. Track progress in real-time with a full audit trail.
What they said when trying it.
“SignSecure reduced our document signing workflow from days to minutes. It's crazy how this feature fits into our day-to-day life!”
Rajesh Kumar
FinServe India
“It's a superpower search. If you don't remember, you can just try to type what you have in mind, see what you get and at least you get the subsets of the documents.”
Priya Sharma
LendTech Solutions
“It actually makes a lot more sense than the search for me personally. That's amazing!”
Vikram Patel
InsureQuick
Frequently asked questions
Everything you need to know about SignSecure and digital document signing.
Yes. SignSecure supports Aadhaar OTP-based eSign which produces legally binding digital signatures under the IT Act 2000 and the Indian Evidence Act. Our DSC token signing is also fully compliant with CCA (Controller of Certifying Authorities) standards.
We support three methods: (1) Electronic Signatures for quick, low-friction signing via draw, type, or upload. (2) Aadhaar OTP eSign for legally binding signatures verified through Aadhaar. (3) DSC USB Token signing for high-assurance signatures using physical digital signature certificates.
Yes. SignBolt, our desktop application, is designed specifically for batch signing. You can sign thousands of PDFs in a single operation using saved templates. Watch folder automation can automatically sign new documents as they arrive in a designated folder.
Yes. SignLift is our headless REST API for PDF signing and form field management. It supports multiple signature placement modes (coordinates, text-search, form fields), runs on AWS Lambda, and can be integrated into any application. SignPad also offers a REST API with webhooks for envelope-based signing workflows.
All documents are encrypted with AES-256 at rest in S3. Private keys never leave the user's device. API authentication uses Ed25519 JWT tokens. SignBridge uses self-signed TLS certificates and HMAC-SHA256 signed IPC. We follow bank-grade security practices throughout.
No. Recipients receive a secure signing link via email and can sign documents directly in their browser without creating an account. Optional email OTP verification adds an extra layer of identity confirmation.
SignSecure works primarily with PDF documents. SignBolt includes a built-in DOCX-to-PDF converter so you can also process Word documents. All signed outputs are standard PDF files with embedded digital signatures.
SignPad offers 100 free credits on signup, which you can use to test the platform. SignBolt offers a demo mode where all features work but signed documents include a watermark. Contact us for enterprise pricing.
Ready to go paperless?
Join 500+ organizations that trust SignSecure for secure, compliant document signing. Start with 100 free credits. No credit card required.
No credit card required · 100 free credits · Cancel anytime