Redact PDF
Permanently remove names, account numbers, signatures, or any sensitive content from a PDF. Draw black boxes by hand, or let the auto-detector find what to hide.
Drop your PDF here
or click to browse · works with documents up to 1 GB
Or try our sample contract — upload a PDF to start
Redactions are flattened into the file — your sensitive content never leaves your device
How It Works
Three steps. Mark, review, flatten.
Upload your PDF
Drop in any PDF — contracts, statements, medical records, court filings. Up to 1 GB.
Draw or auto-detect
Drag black boxes over anything sensitive, or let the auto-detector find names, emails, and account numbers in seconds.
Download flattened PDF
Apply your redactions and download a permanently flattened file. The hidden text is gone — not just covered.
Meet the redaction editor
Everything you need to safely remove sensitive content — laid out in one screen.
- 1
Three redaction tools
Draw a black box, find & redact text, or wipe one out with the eraser. Switch any time — undo and redo always work.
- 2
Hover any redaction to delete
A small × button appears on every black box. Click it, or use the eraser tool to wipe a redaction with a single click.
- 3
Auto-detect PII
Names, emails, phone numbers, account numbers — one click redacts every match in the document. Counts shown live.
- 4
Find & redact across pages
Type any string. Every match across every page lights up in amber, then turns into a permanent black box on Redact.
- 5
Apply & flatten — permanent
When you're done, flattening removes the underlying text from the file. Hidden content can't be copied back out.
Why ConvertPDF.ai for Redaction
A serious redaction tool built for legal, healthcare, and finance teams — without the legacy software price tag.
Permanent flattening
Redactions aren't just black boxes on top of text — the underlying characters are removed from the file so nobody can copy them out.
Auto-detect sensitive
Built-in detectors find names, emails, phone numbers, SSNs, and account numbers across the whole document with one click.
Find & redact text
Type anything — a person's name, a project codename, a vendor — and every match across every page is redacted at once.
Undo any time
Made a mistake? Use the eraser, undo a single step, or redo what you removed. Nothing is permanent until you flatten.
Page-by-page or all
Apply a redaction to one page or use 'Repeat on every page' for headers, footers, and watermarks.
Runs in your browser
Your file never leaves your device. The whole redaction pipeline runs locally in WebAssembly.
Start free, upgrade when ready
No hidden fees. Cancel anytime.
Free
Great for occasional use
$0/mo
- 10 conversions per day
- Max 20 MB file size
- 500 MB cloud storage
- 150 DPI export quality
- Basic PDF tools
Pro Monthly
For power users & professionals
$9/mo
- Unlimited conversions
- Max 300 MB file size
- 10 GB cloud storage
- 300 DPI export quality
- Full document editor
- OCR + AI tools
- Priority processing
- No ads
Pro Yearly
Best value — billed $84/year
$7/mo
- Everything in Pro Monthly
- 20 GB cloud storage
- Save $24/year
- Priority processing
- No ads
Frequently asked
Everything you need to know about redacting safely.
More PDF Tools
Explore our full suite of free online PDF tools.