How does PDF SignCheck verify a PDF digital signature?

PDF SignCheck cryptographically validates the digital signatures embedded in PDF documents. It checks that the document has not been tampered with after signing, verifies the signer's certificate chain against trusted root Certificate Authorities (CAs), and outputs a stamped PDF with a "Verified ✓" badge — similar to clicking "Trust this certificate" in Adobe Acrobat.

Is my PDF document stored or saved during digital signature verification?

No. Your file is processed entirely in memory on the server. It is never written to disk, never stored in any database, and is discarded immediately after the verified PDF is returned to your browser. We take privacy seriously — your documents remain yours.

What types of PDF digital signatures and certificates are supported?

PDF SignCheck supports PDFs that contain PKCS#7 / CMS digital signatures — the standard used by government portals, official certificate authorities, and digital signing platforms. This includes documents from DigiLocker, e-District, MCA, UIDAI, and similar government services worldwide.

Why does Adobe Acrobat Reader display a PDF signature as "Not Verified"?

Adobe Acrobat only trusts certificates from its own Adobe Approved Trust List (AATL). Many government and institutional signers are not on that list. Our tool auto-trusts the signer's certificate after cryptographic verification — exactly what Adobe asks you to do manually when you click "Trust this certificate." The downloaded verified PDF includes a visual stamp so it's clear the signature has been validated.

Is the online PDF signature verification process cryptographically secure?

Yes. We perform full PKCS#7 signature verification: we extract the signed hash from the signature, independently compute the hash of the document's byte ranges, and compare them. We also validate the certificate chain up to a trusted root CA from the Mozilla CA trust store. This is the same process that Adobe Acrobat and other professional PDF tools use.

Are there daily or rate limits for PDF cryptographic verification?

To prevent abuse, we rate-limit to 10 requests per minute per IP address. The maximum file size is 50 MB. These limits are sufficient for normal usage. If you need higher throughput for enterprise use, please contact us.

Which Indian government certificates and portals are supported?

PDF SignCheck fully supports digital signature verification for official Indian government certificates. This includes UIDAI Aadhaar Cards, state e-District certificates (such as Caste, Income, Domicile, and Birth/Death certificates), DigiLocker-issued PDF documents, NFSA Ration Cards, Income Tax / PAN documents, and any official PDF signed via CCA India (Controller of Certifying Authorities) root credentials.

How do I resolve the "Signature Not Verified" or "Signature Not Checked" warning on Aadhaar or Caste certificates?

Simply upload your signed PDF to PDF SignCheck. Our system extracts the digital signature, cryptographically validates the hash integrity against trusted root certificates, and generates a stamped PDF. When you download this verified document, the signature will show as valid, making it suitable for direct submission.

How do I verify a digital signature on a document from UMANG?

Download the PDF from the UMANG app or web portal and upload it to pdfsigncheck.com. The tool extracts the PKCS#7 signature, verifies the certificate chain, and returns a stamped PDF with a green Signature Valid badge.

Can I verify my UDYAM registration certificate on a mobile phone?

Yes. pdfsigncheck.com works in any mobile browser on Android or iOS. Upload your UDYAM certificate PDF and get a verified copy instantly — perfect for bank loan applications and government tender submissions.

Why does Adobe show "Signature Not Verified" on my Digital India document?

Digital India documents are signed by CAs under CCA India (NIC, eMudhra, CDAC), which are not on Adobe's proprietary trust list (AATL). The signature is cryptographically valid. Use pdfsigncheck.com to verify and get a stamped copy.

Is my eShram card digitally signed?

Yes. eShram UAN cards downloaded as PDFs from eshram.gov.in carry a digital signature issued under the CCA India framework. You can verify it on pdfsigncheck.com from any device.

Which Digital India platforms issue digitally signed PDFs?

Major platforms include UMANG, mParivahan (driving license, RC), eShram (worker registration), PM Kisan, UDYAM (MSME registration), GeM (procurement), EPFO (PF statements), ESIC, and DigiLocker. All produce digitally signed PDFs verifiable on pdfsigncheck.com.

Digital India

How to Verify Digital India Service PDF Digital Signatures

Validate signatures on PDFs from UMANG, mParivahan, eShram, PM Kisan, UDYAM registration, GeM, and other Digital India e-governance platforms.

By Minhaj, Founder of PDF SignCheck·Last updated: June 2026

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Verify Any Digital India Document Instantly

Upload any digitally signed PDF from a Digital India portal to pdfsigncheck.com. We verify the government digital signature and return a stamped copy with a “Signature Valid ✓” badge — works on any phone, tablet, or computer.

1. What is Digital India?

Digital India is the Government of India's flagship programme launched in 2015 by the Ministry of Electronics and Information Technology (MeitY) to transform India into a digitally empowered society. Under this initiative, hundreds of government services have been digitized and made available online through unified platforms.

A core pillar of Digital India is the digital issuance of government documents — each carrying a cryptographic digital signature that ensures authenticity and integrity. These signatures use the PKCS#7 / CMS standard (RFC 5652) and are issued by CAs licensed under the CCA India.

2. Digitally Signed Documents from Digital India Platforms

Here are the major Digital India platforms that issue digitally signed PDF documents — all verifiable on pdfsigncheck.com:

UMANG App: The Unified Mobile Application for New-age Governance provides access to 1,200+ government services. Documents downloaded from UMANG carry digital signatures.
mParivahan: The Ministry of Road Transport's platform for digital driving licenses, vehicle registration certificates (RC), and fitness certificates.
eShram: The eShram portal issues digitally signed Unorganised Workers' registration cards (UAN cards) for 28+ crore workers.
PM Kisan: The PM Kisan Samman Nidhi portal provides digitally signed beneficiary status certificates and payment receipts.
UDYAM Registration: The UDYAM portal issues digitally signed MSME registration certificates (replacing the old UAM system).
GeM (Government e-Marketplace): GeM provides digitally signed purchase orders, vendor registration certificates, and supply orders.
EPFO: The Employees' Provident Fund Organisation issues digitally signed UAN passbooks, settlement slips, and pension payment orders.
ESIC: The Employees' State Insurance Corporation provides digitally signed e-Pehchan cards and benefit statements.

For documents specifically from DigiLocker, see our dedicated DigiLocker verification guide. For a general overview of PDF signature verification, see our complete technical guide.

3. Step-by-Step: Verify Digital India Documents with pdfsigncheck.com

Download the original document: Access the relevant Digital India portal (UMANG, mParivahan, eShram, UDYAM, etc.) and download the digitally signed PDF. Ensure you use the official download option — screenshots and browser prints do not retain digital signatures.
Upload to pdfsigncheck.com: Visit pdfsigncheck.com and drag the PDF into the upload zone. Our tool accepts documents from all Digital India platforms.
Cryptographic verification: Our engine parses the PDF structure, extracts the PKCS#7 signature block, computes an independent hash, and validates the entire certificate chain from the signer to the CCA India root.
Download the verified copy: Get a stamped PDF with a permanent “Signature Valid ✓” badge — universally recognized across all devices, browsers, and PDF readers.

4. Why pdfsigncheck.com is Essential for Mobile & Android Users

The Digital India programme was designed mobile-first — the UMANG app alone has over 10 crore downloads on the Google Play Store. Most Digital India services are accessed primarily on Android smartphones. This creates a natural need for mobile-friendly signature verification:

UMANG is mobile-first: Users download government documents directly to their phone. They need to verify signatures without switching to a desktop computer.
mParivahan users are drivers: Auto-rickshaw and truck drivers download their digital driving license and RC from mParivahan. Traffic police verification requires authentic documents — a stamped copy from pdfsigncheck.com provides instant credibility.
eShram workers use basic Android phones: The 28+ crore unorganised workers registered on eShram primarily use budget Android smartphones. Browser-based verification is the only practical option.
PM Kisan beneficiaries in rural areas: Farmers accessing PM Kisan documents may only have mobile internet. pdfsigncheck.com works on any network speed with any mobile browser.
UDYAM registration for MSMEs: Small business owners need verified MSME certificates for bank loans, government tenders, and GST registration. Mobile verification saves a trip to a cyber café.

pdfsigncheck.com is fully browser-based — no app installation, no account creation, no trust configuration. Works on Android, iOS, Chromebooks, Windows, and Mac. Your files are processed with zero server storage.

5. Why Adobe Shows Warnings on Digital India Documents

Digital India documents are signed using CAs licensed under the CCA India — including NIC, eMudhra, CDAC, and state-level CAs. None of these are on Adobe's proprietary Adobe Approved Trust List (AATL).

This means Adobe Acrobat will show a yellow “Signature Not Verified” warning — even though the signature is cryptographically valid and legally recognized under the IT Act, 2000. For a detailed explanation, read our Adobe trust warning explainer.

pdfsigncheck.com validates against the Mozilla CA trust store(80+ globally trusted root CAs) and stamps the document with a green checkmark badge — bypassing Adobe's AATL limitation entirely.

6. Common Issues & Troubleshooting

⚠ Document downloaded from UMANG appUMANG-issued PDFs are digitally signed by the respective department (e.g., EPFO, ESIC, MoLE). All are verifiable on pdfsigncheck.com. Ensure you download the PDF directly — UMANG screenshots are not signed.

⚠ mParivahan digital DL vs physical DLThe mParivahan digital driving license is a digitally signed PDF — not a photo or QR code. Make sure to download the PDF version from the Parivahan portal for verification.

⚠ UDYAM certificate for bank loanBanks accepting UDYAM certificates for MSME loans may want to see the signature status. A verified copy from pdfsigncheck.com with a green checkmark badge satisfies this requirement instantly.

7. Legal Framework

IT Act 2000 — Section 5: Electronic signatures using valid DSCs carry the same legal standing as handwritten signatures.
IT Act 2000 — Section 3A: Introduced e-Sign (Aadhaar-based electronic signatures) for paperless government services.
Digital India Programme: Mandated by the MeitY, all Digital India service documents carry legally valid digital signatures.
MSME Development Act, 2006: UDYAM registration certificates are legally recognized for all MSME benefits, including priority sector lending and government tender participation.

8. Related Tools & Guides

Verify Aadhaar Signatures — Validate UIDAI digital signatures on e-Aadhaar PDFs.
Verify Income Tax & PAN Signatures — Check signatures on ITR and PAN card PDFs.
DigiLocker Verification Guide — Specific instructions for DigiLocker-issued documents.
PDF Bookmarks & TOC Generator — Add bookmarks to multi-page government document compilations.
PDF Dark Mode Converter — Convert verified documents to dark-themed PDFs for comfortable reading.
PDF Placeholder Replacer — Replace placeholder fields in PDF templates.