Sandboxed Parsing
Parses your source PDF in local memory with script evaluation disabled, extracting text coordinates and inspecting hidden Info and XMP metadata fields.
Pixel Destruction & Metadata Sanitization
True 300 DPI PDF redaction.
Zero recoverable text underneath.
Drawing dark rectangles in standard PDF viewers leaves confidential text intact inside the underlying stream. SanitizePDF flattens every page onto a 300 DPI canvas locally in Chrome and Edge, burning blackout boxes into pixels and purging hidden metadata.
300 DPI Bitmap Flattening
EXIF, Author & XMP Purge
0 Bytes Uploaded
Why Overlay "Black Boxes" Leak Confidential Data
Basic markup tools place a filled rectangle annotation above existing PDF text operators. Pressing Ctrl+A and Ctrl+C, or running a 5-line extraction script, recovers every SSN, BSN, IBAN, and name underneath, alongside original Author and revision history fields.
How 300 DPI Canvas Rasterization Seals the Document
SanitizePDF converts each page into a flat 300 DPI pixel grid, paints opaque black pixels directly over redacted regions, discards the source PDF structure completely, and compiles the clean bitmaps into a brand-new PDF with cleared metadata fields.
Four-Stage Destruction Pipeline
What Happens Inside Browser Memory on Export
Every step executes locally inside your browser tab without transmitting a single byte to external servers.
300 DPI Rasterization
Renders each page onto an offscreen canvas at high print resolution over an opaque white background, preserving sharp visual legibility for non-redacted content.
Pixel Buffer Burn-In
Writes solid black rectangles directly into the 2D canvas pixel buffer at all auto-detected and manual coordinates, then encodes lossless PNG images with zero vector glyphs.
Clean PDF & Metadata Wipe
Assembles the flattened bitmaps into a fresh PDF structure with no revision history, form fields, annotations, or embedded scripts, and resets Title, Author, Creator, and Producer tags.
Mathematical Validation
Checksum-Verified Regional PII Detection
Simple digit-counting regular expressions flag dates, invoice numbers, and phone extensions by mistake while missing tokens split across adjacent PDF spans.
SanitizePDF combines full-page character stream reconstruction with official mathematical checksum algorithms across European Union (GDPR), Netherlands, Germany, Belgium, France, United Kingdom, and United States (CCPA) formats.
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National & Tax Identifiers Validates Dutch BSN (11-proef / Elfproef), German Steuer-ID (ISO 7064 Mod 11,10), Belgian RRN, French NIR (INSEE Mod-97), UK NIN & NHS numbers, and US SSN.
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Financial & Business Numbers Verifies ISO 13616 per-country IBAN lengths and Mod-97-10 checksums, Luhn Mod-10 payment card numbers, EU VAT/BTW IDs, Dutch KvK, Belgian KBO, French SIRET, and US EIN.
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Contact, Medical & Resume Fields Granular toggles for email addresses, international phone numbers, street addresses, currency amounts, medical/patient IDs, and names.
Free Manual Mode Forever
Sanitize Sensitive PDFs Without Uploading a Single Byte
Single-page manual click-and-drag blackout redaction and full metadata scrubbing are 100% free forever, even with zero automation credits left. You also receive 3 welcome auto-scan credits on install plus 1 recurring auto-scan every 7 days.
Free Tier (Starter)
€0 forever
1-Week Only (Pro)
€9 one-time
Monthly Plan (Pro)
€19 / month
Annual Plan (Pro)
€189 / year