Redact a PDF before ChatGPT, Claude or Copilot ever sees it.
Automatically strip SSNs, account numbers, emails and hidden metadata in one pass, then flag names and dates for a quick review, all in your browser. Your file (and the text inside it) is never uploaded. Not to an AI, not even to us.
No upload · No account required · Works in Chrome, Edge, Firefox & Safari
Need the AI to still reason over your document and map the answer back? Use Anonymize for AI: reversible placeholders instead of permanent redaction.
You're one paste away from a problem.
Consumer AI tools are brilliant assistants and terrible confidants. The moment a client document, medical record or tax return goes into the box, you've lost control of it.
It leaves your control
Whatever you paste is transmitted to a third party's servers. Free and personal tiers may retain it, and some may use it to train future models.
The duty doesn't pause for AI
Attorney-client privilege, HIPAA, and client confidentiality apply the same way to an AI prompt as to an email. "I was just asking ChatGPT" is not a defense.
You can't un-send it
There's no recall button. The only safe prompt is one where the sensitive data was already gone before you hit enter.
Make the file safe first. In three steps.
KeptPDF redacts on your device with the same engine that powers its legal and healthcare redaction, then proves the text is gone.
-
Drop your PDF in
It opens in the redaction editor instantly. Nothing is uploaded. The file is read straight into memory in this tab.
-
Auto-detect the sensitive data
One click finds names, SSNs, account and card numbers, dates, addresses, emails, phones, medical IDs and more, and scrubs hidden document metadata at the same time.
-
Download the AI-safe PDF
The text under each box is permanently destroyed, not just covered. You get a clean file, plus a certificate that proves zero text remains.
Redaction deletes the text for good. Anonymize swaps it for a consistent alias the model can still follow, then maps the answer back on your device.
Share a clean file? Redact. Want to ask an AI about it and keep the structure intact? Anonymize. Both run entirely in your browser.
What gets stripped before the model sees it.
Turn on everything with the Safe to share profile, or pick exactly what to remove.
People & contact
Names, email addresses, phone numbers and mailing addresses.
Financial & tax
SSNs, ITINs, EINs, credit-card, bank account, routing and IBAN numbers.
Health identifiers
Medical record numbers, NPIs, DEA numbers, health-plan and member IDs.
Dates & locations
Birth dates and other dates, street addresses and IP addresses.
Your own terms
Add a case name, codeword or matter number and redact every occurrence.
Hidden metadata
Document Title, Author, Subject and Keywords, plus EXIF/GPS data baked into embedded images.
The redactor that can't leak your file, because it never has it.
Adobe is expensive and overkill. Most "free online PDF redactors" upload your document to a server you don't control, which is exactly the move you're trying to avoid before AI. KeptPDF does the work in your browser, so there's nothing to upload, retain, subpoena or breach.
Tools that find your PII by sending the text to a cloud model have already transmitted it by the time they've found it. The leak is the detection step.
KeptPDF detects names, SSNs and account numbers on your own device, so the text never leaves to be scanned. Watch the Network tab
Walk away with proof, not just a clean file.
Every redaction is independently re-read and verified: KeptPDF re-opens the finished PDF and confirms zero extractable characters remain. Pro turns that into a branded, verifiable audit certificate, with SHA-256 hashes and a HIPAA Safe Harbor coverage map, that you can hand to a partner, a client, or opposing counsel. And whoever receives it can confirm it's the genuine, unaltered file themselves. They drop the PDF in, KeptPDF re-checks its fingerprint against the certificate, all in their own browser with no account and nothing uploaded.