Privacy & Security

Your Documents Never Leave Your Browser

PDF Redaction processes everything locally on your device using browser-native technologies. No uploads, no servers, no cloud processing. Your sensitive documents stay exactly where they should — on your machine, under your control.

Zero network requests during processing

100% browser-native

How It Works

Your Document

PDF / Image

Browser Processing

Web Workers + WASM

Redacted PDF

Clean & Safe

What's NOT involved in processing:

No cloud uploads

No server processing

No external database

No API calls

Browser-Native Technology Stack

Web Workers

PII detection runs in a dedicated Web Worker thread, keeping the UI responsive. Your document is processed in an isolated context that has no network access.

WebAssembly (WASM)

PDF parsing uses pdfjs-dist compiled to WASM for near-native speed. Text extraction, layout analysis, and glyph mapping all happen in the browser sandbox.

Web Crypto API

When you choose encryption-based anonymization, we use the browser's native AES-256-GCM implementation via the Web Crypto API — the same crypto used by online banking.

Local Storage Only

Document metadata and processing history are stored in your browser's IndexedDB and localStorage. This data never syncs to any server and is fully under your control.

Verify It Yourself

Don't take our word for it. Open your browser's Developer Tools and watch the Network tab while you process a document. You'll see zero outbound requests during PII detection and redaction.

1.Open DevTools → Network tab (F12 or Cmd+Option+I)

2.Upload and process a PDF document

3.Observe: 0 network requests during processing

4.Your document never left your device

You Own Your Data — Delete It Anytime

Since all processing history is stored locally in your browser, you have complete control over it. Delete it anytime — no support ticket, no waiting period, no “account deletion request.”

Clear Browser Data

Go to your browser settings and clear site data for pdfredaction.com. This removes all stored metadata, preferences, and processing history instantly.

Chrome: Settings → Privacy → Clear browsing data

Firefox: Settings → Privacy → Clear Data

Safari: Preferences → Privacy → Manage Data

Clear from Dashboard

Use the document library in your dashboard to delete individual documents or clear your entire processing history with one click. Everything is removed from your browser's local storage immediately.

Dashboard → Document Library → Clear All

Private / Incognito Mode

For maximum privacy, use PDF Redaction in a private browsing window. All processing data is automatically deleted when you close the window — zero traces left behind.

No history, no cache, no cookies after closing

What We Store vs. What We Don't

Server-Side (Our Infrastructure)

Account email & password hashStored

Subscription / billing statusStored

Your documents or PDFsNever

Text content from documentsNever

PII detection resultsNever

Redacted output filesNever

Browser-Side (Your Device)

Document metadata (names, dates)You control

Processing historyYou control

User preferencesYou control

Redaction settingsYou control

Custom patterns & keywordsYou control

—

Original & redacted filesNot persisted

Security Standards

AES-256-GCM EncryptionWeb Crypto APICSP HeadersNo External ScriptsWASM SandboxZero Network Processing

Experience True Privacy

Try it yourself. Process a document and watch the Network tab — zero requests.

Start Redacting View Compliance