Digital Privacy · 6 min read · 2026-11-05
What Hidden EXIF Metadata Reveals About You—and How Local Binary Scrubbing Works
Key Takeaway
How JPEG APP1 segments store exact GPS coordinates, altitude, camera serial numbers, and owner names, and how to strip them before sharing.
When you take a photo with a smartphone or digital camera, your device writes an `APP1` (`0xFFE1`) TIFF metadata segment containing dozens of hidden fields:
1. **Exact GPS Coordinates & Altitude:** Latitude and longitude accurate to within a few meters.
2. **Hardware Serial Numbers:** Body and lens serial numbers that link anonymous uploads to the same camera.
3. **Owner Name & Software History:** Embedded copyright strings, author names, and editing timestamps.
PrivacyFold inspects the raw binary `DataView` of your JPEG in memory, displays each hidden tag as a peelable sticky note on the preview stage, and exports a clean pixel buffer with zero EXIF segments.
Try the Tool Privately
Run the client-side tool explained in this guide with zero server uploads.
Open Tool →