Short answer
Fingerprint runs entirely in your browser. Generate a SHA-256 fingerprint of the file bytes and extracted text. No account, no watermark, and the file never leaves your device.
Stays on your device·No upload·No account·No watermark·Offline after install·How it worksMethodologyPrivacy
PDF fingerprint
Hash the file bytes and extracted text — useful for integrity checks before and after edits.
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About this tool
Generate a SHA-256 fingerprint of the file bytes (and optional text) for integrity checks — not encryption.
How to use PDF fingerprint
- 1Open your PDF.
- 2Generate the fingerprint.
- 3Copy or save the hash.
You need
- One PDF
Frequently asked questions
What is fingerprinted?
SHA-256 of the raw file bytes, plus a hash of extracted text when available.Does a matching hash prove privacy?
No. Hashes prove integrity of bytes/text, not that a third party never saw the file. Pair with local tools and privacy receipts.Does fingerprint upload my PDF?
No. Hashing runs in your browser with Web Crypto.