Redact a contract online

Sharing a sample contract with a prospect or a court? Blackline AI removes parties, pricing, addresses and signatures while keeping the structure intact – great for NDAs, templates and case-law citations.

What gets redacted

  • Signing parties and counterparties
  • Pricing, fees and commission %
  • Company addresses & registry numbers
  • Project / client codenames
  • Signatures and dates

How it works

  1. 1Drop your file into the editor – PDF, JPG or PNG.
  2. 2The AI scans every page and classifies sensitive items into categories.
  3. 3Toggle categories on/off, fine-tune or draw your own boxes.
  4. 4Export a flat, non-recoverable PDF in one click.
Permanent redaction

Black bars are baked into a flattened image – the text underneath cannot be copied, searched or recovered.

Runs in your browser

OCR, rendering and export happen on your device. Only extracted text is sent to AI for classification.

GDPR-friendly by design

Files are never stored on our servers. Close the tab and the document is gone.

Multi-page & scans

Works with multi-page PDFs and scanned images thanks to built-in OCR.

FAQ

Can I redact specific clauses only?+

Yes. Use manual redaction to draw a box across any paragraph.

Does redaction affect the layout?+

No. The original layout is preserved – we render the page as an image with black bars in place.

Is this admissible in court?+

Yes. The export is flattened and the original underlying text is non-recoverable, which is what most courts require for redaction.

What about Word or DOCX files?+

Convert to PDF first (most word processors export to PDF). Then redact in Blackline AI.

Start redacting now

Free for 3 documents per month. No signup needed to try.