Fingerprint File — free, private, no upload

Generate SHA-256, SHA-1 and MD5 cryptographic hashes of any file to prove integrity or identify leaks. Fast and fully local.

No upload. No watermark. No sign-up. This fingerprint file tool runs entirely inside your browser — your file never leaves your device.

How to fingerprint file

1. Open your PDF in the tool above — it loads locally in your browser.
2. Pick your options; processing happens on your device with JavaScript.
3. Download the result — free, with no watermark added.

More security & privacy tools

• Encrypt PDF — Password-protect with AES-256 and fine-grained permissions.
• Remove Password — Unlock a PDF you can open, and save a decrypted copy.
• Unlock PDF — Lift printing, copying and editing restrictions.
• Strip Metadata — Scrub author, producer and hidden document info.
• Privacy Risk Scanner — What is this PDF leaking? Metadata, PII — full report.
• Redaction Checker — Is the blacked-out text really gone, or still recoverable?

← All free local PDF tools