Guides & articles
Practical explainers on Office, PDF and photo metadata from the team that built the cleaner.
What metadata hides in Office documents
A .docx is a ZIP archive with a properties folder inside. What core.xml, app.xml, comments and tracked changes record — and how to clean it.
6 min read/August 2026
PDF metadata explained: Info dictionary and XMP
A PDF keeps metadata in two places, plus dates with time zones, producer strings, images with their own EXIF and versions you thought were gone.
7 min read/June 2026
Metadata leaks that made headlines
A dossier, a fugitive's photo, a redacted report and a printed page: five documented cases where the file said more than its author meant to.
7 min read/May 2026