SureSign

SureSign helps you understand what was actually checked in a digitally signed PDF — in plain language, before you rely on it. VERIFY SIGNED PDFS • Choose a PDF or share it into SureSign from another app. • Check signature integrity, signer and certificate facts, and get an honest trust summary. • Batch-check multiple files and export a CSV. • Scan a printed document's QR code to fetch and check its signed original. • Review Trust Passports, “What Changed?” records, saved reports and a Trust Heatmap on your device. PROTECT A PDF Add AES-256 open-password protection to a PDF. The file and password travel over HTTPS to our server only to perform the protection. The password is not stored and cannot be recovered by us. OPTIONAL SECURE VAULT Create a Vault using an ID and password you invent — no email or phone number required. Save encrypted copies of verified or protected documents. Every stored document has its own encryption key, and deleting an item destroys its key immediately. Optional biometric unlock is performed by your device. HONEST RESULTS SureSign distinguishes a successful check from a document that could not be fully checked. It does not turn missing facts into a green verdict. Technical results are guidance, not legal advice, notarisation or a guarantee that a document is authentic or legally valid. PRIVATE BY DESIGN Core features require no account. Verification and protection uploads are processed for the requested operation and discarded unless you explicitly save an encrypted copy to your Vault. Reports and trust history stay on your device. No ads, analytics, advertising identifiers or tracking SDKs. Available in English and Hindi.