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.

क्या यूपी ई-डिस्ट्रिक्ट का सत्यापित प्रमाण पत्र हर जगह मान्य है?

हाँ, सूचना प्रौद्योगिकी अधिनियम 2000 की धारा 5 के अनुसार, डिजिटल रूप से सत्यापित प्रमाण पत्र पारंपरिक भौतिक हस्ताक्षरित दस्तावेजों के समान ही कानूनी रूप से मान्य है।

यूपी जाति या आय प्रमाण पत्र पर पीला प्रश्न चिह्न कैसे हटाएं?

अपनी पीडीएफ को pdfsigncheck.com पर अपलोड करें। हमारा सर्वर क्रिप्टोग्राफिक रूप से हस्ताक्षर की पुष्टि करेगा और आपको एक नई पीडीएफ फाइल देगा जिस पर स्थायी हरा निशान लगा होगा।

Uttar Pradesh

How to Verify Uttar Pradesh e-District PDF Digital Signatures

Uttar Pradesh's e-District and eSathi portals provide citizen-centric services online. Official certificates like Caste (Jati Praman Patra), Income (Aay Praman Patra), and Domicile (Nivas Praman Patra) are issued as digitally signed PDFs. Verifying these signatures is necessary to confirm their validity for college admissions, state scholarships, and government job verifications.

By Minhaj, Founder of PDF SignCheck·July 2026

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Verify Your Uttar Pradesh Certificate Signature Instantly

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Drag & drop PDF to verify signatures

PKCS#7, CAdES, PAdES, X.509 chain & LTV validation

.PDF/MAX 50MB

1. What is a Uttar Pradesh e-District Certificate & Why is it Digitally Signed?

2. Why Adobe Reader Shows "Signature Not Verified" (Yellow Question Mark)

When you download a certificate from e-District UP, PDF readers like Adobe Acrobat often display a yellow question mark (⚠️) because the intermediate certificate authority, NIC-UP CA, is not included in Adobe's default trusted root list. PDF SignCheck resolves this by verifying the signature against the CCA India root store and stamping a green tick on it.

3. Step-by-Step: How to Verify Uttar Pradesh Certificate Signatures Online

Verify your certificate and convert the yellow warning into a green checkmark instantly using PDF SignCheck:

Download Certificate: Log in to eSathi UP or the e-District UP portal and download the original signed PDF certificate.
Upload to PDF SignCheck: Drag the PDF onto our website to check the cryptographic signature of the Tehsildar or Sub-Divisional Magistrate (SDM).
Get Verified Stamp: Download the stamped PDF with a permanent green checkmark to submit to JoSAA, CSAB, or state recruitments.

Uttar Pradesh e-District Certificate Details

Certificate Type	Issuing Authority	Signing CA	Legal Validity
Caste Certificate (जाति प्रमाण पत्र)	Tehsildar / SDM / Revenue Dept	NIC-UP	Valid (IT Act Sec 5)
Income Certificate (आय प्रमाण पत्र)	Tehsildar / SDM / Revenue Dept	NIC-UP	Valid (IT Act Sec 5)
Domicile Certificate (निवास प्रमाण पत्र)	Tehsildar / SDM / Revenue Dept	NIC-UP	Valid (IT Act Sec 5)

4. Why Mobile Users Need PDF SignCheck

Most citizens in Uttar Pradesh download and view their e-District UP certificates on Android and iOS mobile devices. However, mobile web browsers (like Chrome or Safari) and built-in PDF viewers completely ignore embedded digital signatures, showing no signature status at all. PDF SignCheck runs completely in your mobile browser, executing checks in-memory with zero file storage, providing Uttar Pradesh mobile users with instant verified stamps.

5. Legal Validity of Digital Signatures under the IT Act, 2000

According to Section 5 of the Information Technology Act, 2000, electronic signatures validated against a licensed Certifying Authority (like those under the CCA India root) hold the same legal status as traditional handwritten signatures. They are legally binding and accepted by all government offices, courts, and banks. In Uttar Pradesh, certificates issued through e-District UP and signed by NIC-UP CA (National Informatics Centre UP) are fully valid once cryptographically verified. Uttar Pradesh certificates are signed using certificates issued by NIC-UP CA, which is a licensed Certifying Authority under the IT Act, 2000. Our platform verifies the integrity of the document bytes and validates the certificate chain.

6. Common Troubleshooting & FAQs

Is the verified UP e-District certificate valid everywhere?Yes, according to Section 5 of the Information Technology Act 2000, digitally verified certificates hold the same legal validity as physical signatures and must be accepted by all UP government departments.

How do I remove the yellow question mark on UP caste certificates?Upload the original PDF to pdfsigncheck.com. Our server cryptographically verifies the signature block and returns a copy with a permanent green checkmark.

Other State e-District Verification Guides

Verifying certificates from another Indian state? Explore step-by-step digital signature verification guides for other state portals:

Maharashtra (Aaple Sarkar)Bihar (RTPS Bihar)Delhi (e-District Delhi)Madhya Pradesh (MP e-District)West Bengal (e-District West Bengal)Rajasthan (e-Mitra Rajasthan)Tamil Nadu (TN e-Sevai)Gujarat (Digital Gujarat)Karnataka (Seva Sindhu)Andhra Pradesh (MeeSeva AP)Telangana (MeeSeva Telangana)Kerala (e-District Kerala)Odisha (e-District Odisha)Punjab (Punjab Sewa Kendra)Haryana (Saral Haryana)Assam (RTPS Assam)Jharkhand (JharSewa Jharkhand)Chhattisgarh (e-District CG)Himachal Pradesh (e-District HP)Uttarakhand (e-District UK)Goa (Goa Online)Sikkim (Sikkim e-District)Tripura (e-District Tripura)Arunachal Pradesh (e-District Arunachal)Manipur (e-District Manipur)Meghalaya (e-District Meghalaya)Mizoram (e-District Mizoram)Nagaland (e-District Nagaland)

Zero-Storage Privacy

Files are processed strictly in secure memory modules inside your local browser. No server storage.

Cryptographic Standards

Fully compliant with IETF RFC 5652 (CMS), Adobe PDF specs, eIDAS, and Controller of Certifying Authorities (CCA).

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No personal registration or document tracking is required. Verify up to 2 files daily as guest.

Detailed Audit Trails

Generates downloadable, verified PDFs with structural signature stamps and trust summaries.

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Verification executes inside sandboxed browser modules to ensure isolated document handling.

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