Local PDF Metadata & XMP Sanitizer

Remove author, creation dates, and hidden XMP metadata from PDFs directly in your browser. 100% private client-side sanitizer.

Forensic Privacy & Whistleblower Sanitization

Scrub PDF Metadata & Sanitize Hidden XMP XML Streams Locally

Purge author names, software fingerprints, edit histories, and hidden GPS coordinates directly in your browser memory.

Trailer & Info Wiped

Permanently removes /Author, /Creator, /Producer, /CreationDate, and /ModDate dictionary entries.

XMP Packet Removal

Strips embedded Extensible Metadata Platform (XMP) XML streams containing raw hardware and editing history.

Zero File Upload

Sanitization happens entirely within browser RAM with zero bytes transmitted across the internet.

The Hidden Metadata Trap in PDF Documents

Whenever a PDF document is generated by word processors (Microsoft Word, Google Docs), design software, or document scanners, extensive metadata packets are automatically embedded into the file structure. These invisible tags include the author’s full legal name, corporate username, computer name, operating system version, software serial keys, printer identifiers, exact creation and modification timestamps, and even GPS camera coordinates embedded in linked graphics.

When distributing whitepapers, corporate reports, legal filings, or investigative disclosures, failing to scrub metadata can unintentionally reveal confidential draft dates, internal corporate hierarchies, software licensing details, or the identity of anonymous sources.

Deep In-Memory PDF Object Sanitization

PrintSign performs deep forensic document sanitization by inspecting the PDF cross-reference table and parsing both standard Info Dictionaries and modern Extensible Metadata Platform (XMP) byte streams. Standard PDF viewers frequently leave XMP packets intact even when users attempt to "clear properties" in their desktop operating system.

PrintSign traverses the PDF Catalog, unlinks the `/Metadata` dictionary pointer, overwrites the `/Info` trailer reference, and removes all structural revision logs. This guarantees that when a sanitized PDF is examined in specialized tools like ExifTool, Adobe Acrobat Preflight, or Hex editors, no proprietary or personal fingerprints remain.

  • Complete Info Dictionary eradication: Purges /Title, /Author, /Subject, /Keywords, /Creator, and /Producer.
  • Raw XMP packet deletion: Eradicates all embedded Dublin Core, Adobe PDF, and XMP Basic schema streams.
  • PieceInfo & Private App Data clearing: Removes proprietary Illustrator, Photoshop, and InDesign editing history.
  • Clean xref rebuilding: Generates a new, compact cross-reference table without orphaned metadata fragments.

Air-Gapped Security for Whistleblowers & Legal Professionals

Sanitizing sensitive disclosures on remote servers completely defeats the purpose of anonymity, as cloud services log client IP addresses, browser headers, and uploaded file hashes. PrintSign runs 100% on your local CPU and RAM. You can sanitize files on an air-gapped laptop with network cards disabled, ensuring uncompromised journalistic, legal, and regulatory compliance.

Frequently Asked Questions

Does clearing metadata affect the text or formatting of my PDF?

No. PrintSign scrubs only the non-visible metadata dictionaries and XMP data streams. Your visual document layout, vector typography, and image resolution remain 100% unaltered.

Can forensic tools like ExifTool recover stripped metadata from PrintSign?

No. PrintSign rebuilds the PDF object tree and completely unlinks metadata streams from the catalog, so forensic scanners find only an empty, sanitized root.