Employment

How to verify a DSC-signed employment offer letter

Updated June 2026 · 5 min read

Offer-letter fraud is a real problem — both fake offers used to scam job seekers, and doctored offers used to inflate salaries during background checks. When a company signs its offer letters, experience certificates or relieving letters with a Digital Signature Certificate (DSC), you can cut through all of that in seconds by verifying the signature.

What a signed offer letter proves

A valid DSC signature confirms two things: the letter's contents (your name, designation, CTC, joining date) haven't been changed since HR signed it, and the signer holds a certificate issued by a licensed Indian Certifying Authority. Together, that's far stronger than a letterhead and a scanned signature, both of which are trivial to fake.

Verify the letter

Get the original signed PDF from HR (not a printout or a phone photo).
Upload it to our signature verifier.
Click Verify and check the verdict, the signer's name and the issuing CA.

How to spot a forgery

Red / modified verdict: the file was edited after signing — treat with caution.
No signature found: the "signature" is just an image pasted onto the page; there's nothing cryptographic to trust.
Signer name doesn't match the company: a genuine corporate DSC usually names the authorised signatory or the organisation.

Remember, an Adobe "validity unknown" message on a genuine letter is usually just the untrusted-CCA-root issue covered in our fix guide — not evidence of forgery. When in doubt, upload it here for a plain answer.

Curious how the trust chain decides all this? Read our explainer on CCA India and Certifying Authorities, or the full verification guide.