Digitally Sign PDFs for GST Registration with Your DSC
Sign GST registration documents with your Class 3 USB-token DSC directly in the browser. Only a cryptographic hash reaches the token - the document itself never leaves your device.
No signup required • 100% browser-based • Zero uploads
Key Benefits
Frequently Asked Questions
Who needs a DSC for GST registration?
Companies and LLPs must sign GST registration applications with a Class 3 DSC of the authorised signatory; other taxpayers can generally use Aadhaar-based e-verification instead. Supporting documents you prepare alongside the application can also carry a DSC signature.
Does this replace signing on the GST portal itself?
No - the portal has its own DSC step using emSigner for the application form. This tool is for signing the PDF documents themselves - authorisation letters, declarations, and annexures - before you upload them.
Is my document uploaded when I sign it?
No. The PDF is prepared and embedded with the signature entirely in your browser; only a small cryptographic hash is sent to your USB token via a localhost bridge for signing. The document never travels over the internet.
Which tokens are supported?
Standard Class 3 USB tokens from Indian CAs (ePass, ProxKey, and similar PKCS#11 tokens) work through a small local bridge application. Your token PIN is entered locally and never shared with any website.
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Sign with DSC