Redact anything. Upload nothing.

Three ways. (1) Open DevTools → Network tab, load your PDF, redact, export — you'll see zero requests carrying your data. (2) Load this page, then turn off Wi-Fi entirely; the app keeps working. (3) Read our Content-Security-Policy header: the browser itself is instructed to refuse connections with your data.

Yes — it's the approach security teams recommend for true sanitization. Box-over-text redaction has leaked sensitive data in court filings and government releases for decades, because the text remains in the file. Flattening to pixels makes recovery physically impossible. The trade-off: text in the exported PDF is no longer selectable (it's an image), which for a redacted document is usually exactly what you want.

It doesn't survive. Your exported file is built from scratch, so author names, edit history, hidden layers, embedded scripts, and tracking metadata from the original are gone.

The free tier handles documents up to 3 pages here (up to 10 in some tools), forever. Plus is $19/year and removes every limit — unlimited pages, files and documents across all five tools, on every device you own. That's less than one month of Acrobat Pro. Pro is $4.99/month and adds the weekly-workflow superpowers on top: Auto-Redact, batch compress & convert, the signature library, and Bates stamping — still 4× cheaper than Acrobat. No account either way — your license key is your receipt.

The same way everything else here works: in your browser tab. Auto-Redact reads the text layer of your PDF locally and tests it against patterns for SSNs, emails, phone numbers, account numbers, and any custom terms you add. Matches become ordinary redaction boxes — you review, adjust or remove them, then export. Neither the document nor your patterns ever leave the tab.

That's the core use case — it's safer than any upload-based tool precisely because there's no server involved. (Standard disclaimer: review your export before sending, and check your organization's compliance requirements.)