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Fingerprint PDF

Embed cryptographic SHA-256 integrity hashes and invisible forensic watermarks.

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Step-by-Step Guide

How to use Fingerprint PDF

1

Upload your PDF

1/5

Select the PDF you want to fingerprint.

2

Enter recipient information

2/5

Add the recipient's name or ID for each copy you want to generate.

3

Generate fingerprinted copies

3/5

Click "Generate". Each copy receives a unique, invisible embedded fingerprint.

4

Distribute the copies

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Send each fingerprinted copy to the corresponding recipient.

5

Identify leaks

5/5

If a copy is leaked, upload it to the Verify tool to identify the fingerprint and trace the source.

Best Practices

Pro Tips

Tip 1

Fingerprinting does not prevent copying — it only enables tracing. Combine with encryption for stronger protection.

Tip 2

Keep a secure record of which fingerprint ID was assigned to which recipient for verification purposes.

Common Questions

Frequently Asked Questions

A sophisticated actor may be able to remove the fingerprint through heavy processing. Combine fingerprinting with encryption and access controls for the strongest protection.

No. The fingerprint is invisible — the document's visual appearance is unchanged.

The fingerprint encodes a recipient identifier that you provide. The actual recipient data is stored in your local fingerprint registry, not in the document itself.