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Document redaction for auditors

Samples, vouching, draft reports — Blackline AI keeps third-party data out of audit files.

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Common pain points

  • Voucher samples with customer data
  • Draft reports without third names
  • Workpapers for review

How it works

  1. 1Drop a file into the editor — PDF, JPG or PNG.
  2. 2The AI classifies sensitive data automatically.
  3. 3Add or remove redactions by hand if needed.
  4. 4Export a flat PDF — done.

Why Blackline AI

GDPR-friendly by design

Redactions are baked into a flat image — text underneath cannot be recovered.

Saves hours every week

What used to take a black marker and a scanner now takes seconds.

Stays in your hands

Processed in your browser. Files never sit on our servers.

FAQ

Are redactions legally sound?+

Yes. Blackline AI flattens the page and bakes the black bars into the image. Unlike many PDF tools, text underneath cannot be copied, searched or recovered — critical for auditors.

Are my documents stored anywhere?+

No. OCR, rendering and export happen in your browser. Close the tab and the files are gone.

Does it work with scans?+

Yes. Built-in OCR reads scanned pages, JPG/PNG photos and multi-page PDFs.

Redact your next document in seconds

3 documents free — no signup needed to try.

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