Anonymize PDF
Remove metadata and hidden information from your documents
Anonymize PDF: Remove Hidden Metadata
The Anonymize PDF tool removes all metadata and hidden information from PDF documents to protect privacy. PDFs contain extensive hidden data including author names, organization names, software used to create them, creation and modification timestamps, edit history, document IDs, and more. Using the pdf-lib library, this tool strips all this metadata, creating a clean document that reveals nothing about its origins. This is essential for whistleblower documents, anonymous submissions, public document releases, and any situation where document origins must remain confidential. All anonymization happens in your browser without server uploads.
Metadata can reveal sensitive information inadvertently. Use cases include anonymizing whistleblower documents to protect sources, removing identifying information before public document releases, protecting privacy when submitting anonymous reports, cleaning documents for competitive intelligence work where sources must remain hidden, preparing documents for publication without revealing internal workflows, and complying with privacy requirements when sharing documents externally. The tool is critical for journalists, investigators, legal professionals, and anyone needing to share documents without revealing their origins. Unlike simple metadata editing, anonymization completely removes all trackable information.
To anonymize PDFs, upload your document by clicking the upload area or dragging it in. The tool automatically scans for all metadata. Click Anonymize to strip all hidden information. Download the clean PDF with all identifying metadata removed and verify using document properties that no author, creator, or other metadata remains.
Remove author and creator information
Strip creation and modification dates
Clear document properties
Remove hidden metadata
Clean PDF producer information
No file uploads - complete privacy
Fast processing
Unlimited free anonymization
Frequently Asked Questions
We remove title, author, subject, keywords, creator application, producer, creation date, modification date, and other document properties. The visible content remains unchanged.