VeriPatra: PDF Signature Check

Understand what an existing PDF digital signature can tell you. VeriPatra helps you inspect an already signed PDF and understand the result. OPEN A SIGNED PDF Choose a PDF from your device or share a supported PDF into VeriPatra from another app. Run the full verification through the online service and review the reported signature, document-coverage and available certificate facts. Full checks send the document over HTTPS for server processing and require an internet connection. READ THE LIMITS WITH THE RESULT See whether the service completed the check and which facts it could establish. A failed check, an unsigned PDF and an unavailable service are different situations. Unsupported or unavailable checks are labelled rather than filled with a guessed result. Certificate revocation, timestamps and long-term-validation details must be read according to the facts actually reported; their presence is not a universal guarantee of trust. A LOCAL PRELIMINARY VIEW For supported signature formats, an on-device preliminary check can inspect the first signature's mathematics while the full check is pending. It does not verify the signer's identity, certificate trust, revocation or timestamps, and does not produce the full verification verdict. KEEP A RECORD Review local Trust Passports for documents you have checked. Export the available report and evidence artifacts when you need a record of the check. These exports document available technical facts and omissions; they are not legal certifications. CHECK MORE THAN ONE FILE Use batch verification for multiple PDFs and export a CSV summary. You can also scan a document QR code that points to an accessible signed PDF and run the same online verification flow. ENGLISH AND HINDI Switch the interface language in the app. Some dynamically generated analysis and batch-screen text may remain in English. VeriPatra is an independent tool for checking existing digital signatures. It is not a government service and does not certify the truth of a document's contents, a person's identity or its legal acceptability. Use the result and its stated limitations alongside the checks your situation requires.

New: VeriPatra AI (optional, off until you agree). It explains every result in plain English or Hindi, decodes certificate warnings, reads a document for red flags after you tap Analyse, and answers questions. It never changes the result and never sends your PDF. Plus five new explainers in the Blog.