डिजिटल टाइमस्टैम्प लगाएं
सत्यापन और कानूनी वैधता के लिए PDF दस्तावेज़ों में विश्वसनीय डिजिटल टाइमस्टैम्प जोड़ें।
Upload PDF for TSA Timestamp
About This Tool
Timestamp PDF adds RFC 3161 compliant trusted timestamps to your PDF documents using external Time Stamping Authorities (TSA). It provides legally-binding mathematical proof that a document existed in a specific, unaltered state at a precise instant in time.
Select from global trusted TSA servers such as DigiCert, Sectigo, SSL.com, FreeTSA, or MeSign. No personal signing certificates are required to secure your documents against future tampering.
Supports fully secure local hashing before handshake, guaranteeing absolute document contents remain 100% confidential.
How to Use
फ़ाइल अपलोड करें
अपनी डिवाइस से फ़ाइल चुनें या यहाँ खींचें और छोड़ें।
विकल्प चुनें
अपनी आवश्यकतानुसार सेटिंग्स समायोजित करें।
प्रोसेस करें और डाउनलोड करें
कार्य पूरा होने पर डाउनलोड बटन पर क्लिक करें।
Use Cases
Intellectual Property
Establish clear priority proof of patents, drafts, and ideas before public release.
Financial Auditing
Provide certified tamper-proof logging of ledger archives and balance reports.
Legal Contracts
Lock legal agreements with a trusted time proof to avoid backdating arguments.
Frequently Asked Questions
An RFC 3161 timestamp is a cryptographically signed token issued by a recognized third-party authority (TSA) that links a document hash to a specific, verified clock source.