Class 3 signing
Individuals, directors, CAs
Tax and company filings, EPFO, tenders and GeM, trademark and reissue.
₹1,200/ 2 years
Signing PDFs in Adobe
A Class 3 signing DSC on a USB token signs PDFs in Adobe Acrobat or Acrobat Reader. Contracts, invoices, letters and covering documents.
Class 3 signing costs ₹1,040 for 1 year, ₹1,200 for 2 years or ₹1,820 for 3 years. The USB e-token is ₹550 more if you do not have one.
Answer
A Class 3 signing DSC on a USB token signs PDF documents in Adobe Acrobat or Acrobat Reader. The token's driver ties the signature to the certificate, so the signed PDF shows who signed it and that no one changed the file after. The same certificate signs your tax and company returns as well as the documents you open in Adobe. We fill and submit the application for you; you do the Aadhaar OTP and video KYC with the Certifying Authority, which issues the certificate. Application support is included in the price.
The certificate behind tax and company filings
What a Class 3 signing certificate is, which portals ask for one, and how long it stays valid.
Who needs this
- Businesses that sign contracts, invoices and letters as PDFs
- Contractors signing covering documents for tenders
- Anyone who needs a signature on a PDF that the reader can verify
Documents required
- PAN card, name as per income tax records
- Aadhaar card, linked to that PAN and to the mobile. Photo and ID are captured live in the CA's video KYC.
- Email ID and mobile number for the DSC record
Process
- Send us your documents
Send your contact details and documents on WhatsApp, by email or at our Udaipur office, and we fill the application.
- Complete payment
Pay for the DSC and any add-ons
- We submit, you do the KYC
We file the application with the Certifying Authority. You then confirm your mobile and email with OTPs, do the Aadhaar OTP and video KYC with them, and a final eKYC OTP on your phone approves the application. We assist you at every step.
- Receive token and sign your PDFs
Get the USB token by courier (or use your own FIPS 140-3 token). Open a PDF in Adobe Acrobat or Acrobat Reader, choose the certificate from the token and sign. The reader shows who signed and whether the file was changed after.
Price
Common questions
Look through the answers below. If yours is not there, message us and we will help you choose.
Still have a question? Chat on WhatsApp
Which certificate do I need to sign a PDF?
A Class 3 signing DSC on a USB token. The token's driver lets Adobe Acrobat or Acrobat Reader read the certificate and attach the signature to the PDF.
What does the signature on the PDF show?
It shows who signed the PDF and that the file has not been changed after the signature. Anyone who opens the PDF in Adobe Reader can see both.
Can the same DSC sign my tax returns and my PDFs?
Yes. The same Class 3 signing certificate signs your returns on the portal and the PDFs you sign through Adobe.
Do I need a new token if I already have one?
Only if it is FIPS 140-3. Since 21 September 2026 new certificates cannot go on older FIPS 140-2 tokens, so any token bought before then will not work. A new token is an add-on at checkout.
Does this work in Acrobat Reader as well as Acrobat?
Signing works in both Adobe Acrobat and Acrobat Reader. The token's driver handles the signing, and the reader verifies the signature.
What kinds of documents can I sign this way?
Contracts, invoices, letters, tender covering documents, or any PDF that needs a verifiable signature. The certificate does not limit the document type.
Ready to get your DSC?
Pick a certificate, choose validity, add a token if needed. Application support included.