Metadata: the hidden passenger in every file

A photo carries GPS coordinates. A PDF carries the author's username and the office printer model. A Word doc carries every revision.

Why this matters today

Most of the time this is harmless. Occasionally it's catastrophic — an exposed location, a leaked draft, a redaction that turned out to be a highlight color.

The most damaging line in your document is the one you didn't write.

In practice

Here is the part that turns theory into a habit:

• Start small — a single file, a single page, a single test.
• Measure twice. Trust the numbers, not the vibe.
• Keep an undo path. Reversible decisions buy you courage.

A note on tooling

Every tool on this site runs in your browser unless we say otherwise. That changes the trade-offs: nothing to upload, nothing to retain, nothing to leak. The downside is a small ceiling on file size and a dependency on your device's CPU — both acceptable for most editorial workflows.

Takeaway

Strip metadata before publishing anything that leaves your circle of trust.