PDF Metadata Tools
Control your digital footprint. View hidden data, edit document properties, or strip everything for total privacy.
Edit Metadata
Update titles, authors, creation dates, and keywords. The easiest way to organize your digital library or fix document errors.
View & Inspect
Forensic inspection of your PDF. Reveal hidden creator tools, software versions, encryption status, and raw XMP blocks.
Clean & Sanitize
The ultimate privacy tool. Strip all metadata, thumbnails, and proprietary tags before sharing sensitive files.
Understanding Hidden PDF Data
Most users believe a PDF only contains the text and images they see on screen. However, standards like XMP (Extensible Metadata Platform) and the PDF Info Dictionary store vast amounts of background information.
Standard Properties
The "Info Dictionary" contains the basics: Title, Author, Subject, and Keywords. This is what search engines use to index your files.
XMP & Advanced
XML-based data that tracks software history (e.g., "Adobe InDesign 16.0"), creation dates, and even unique document IDs.
Whether you need to edit these details for better organization or remove them for privacy, Lyonite provides the tools to handle both layers of data.
Why our approach is safer (and faster)
Most online PDF editors force you to upload your file to their "Cloud." We take a different approach that prioritizes your privacy.
Other Editors
When you use a standard online tool, you are actually uploading your private document to a stranger's server.
- ❌ Your file travels across the internet
- ❌ You have to wait for upload/download
- ❌ Privacy is compromised by the server
The Lyonite Approach
We don't take your file. Instead, we send the software to you. The tool runs entirely inside your web browser.
- Your file never leaves your computer
- Instant processing (no uploading)
- Banking-grade privacy by default