Photos and screenshots say more than you think: where you were, what phone you own, sometimes a hidden copy of the uncropped shot or a video clip appended by motion-photo mode. Sepia is the step before you hit send: * X-ray: see everything the file says about you, ranked by severity. GPS in plain words, the hidden thumbnail shown, trailing data called out. * Redact: ink and pixelation burned into the pixels, plus crop. Where the device supports code detection, QR codes are found and offered for covering. * Prove it: the export is re-encoded from scratch, then Sepia re-opens its own output and shows you what is (and is not) still inside. Everything happens on your device. This app has no INTERNET permission: the operating system will not let it open a connection, and you can check the manifest instead of trusting a promise. Runs on Android 9 and newer, with Android System WebView 108 or newer. Android 9 has had no security fixes since January 2022, so on a phone that old Sepia works, but the phone itself is easier to break into. No accounts, no analytics, no dependencies. GPL licensed.