# PDF fingerprint

> Generate a SHA-256 fingerprint of file bytes and extracted text. Free PDF fingerprint — private integrity check, no upload.

Canonical: https://mypdf.space/tools/fingerprint
Last updated: 2026-10-26

## 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.

## About this tool

Generate a SHA-256 fingerprint of the file bytes and extracted text.

Hash the file bytes and extracted text — useful for integrity checks before and after edits.

Generate a SHA-256 fingerprint of the file bytes (and optional text) for integrity checks — not encryption.

## How to use

1. Open your PDF.
2. Generate the fingerprint.
3. Copy or save the hash.

## What you need

- One PDF

## Notes

- SHA-256 of file bytes (and optional text) — useful for integrity checks, not encryption.

## FAQ

### 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.

## Related

- [PDF info](https://mypdf.space/tools/pdf-info)
- [Confidential Send](https://mypdf.space/tools/workflow)
- [Deep Clean](https://mypdf.space/tools/deep-clean)
- [Remove metadata](https://mypdf.space/tools/remove-metadata)
- [Encrypt PDF](https://mypdf.space/tools/encrypt-pdf)
- [Compare PDFs](https://mypdf.space/tools/compare-pdfs)
- [Category](https://mypdf.space/security)