Watermark Inspector

GCSA Watermark Inspector is an on-device inspection tool for supported media. HOW IT WORKS 1. Choose supported media with Android Photo Picker or the system file picker. 2. The app runs available watermark-signal and provenance checks locally on your device. 3. Review findings and available evidence in a local report. You can inspect potential invisible watermark signals and available Content Credentials. PRIVATE BY DESIGN Selected media is processed locally on your device. The default mobile workflow does not upload original files, thumbnails, EXIF/XMP metadata, GPS information, frequency-domain features, embeddings, or detector intermediate results. CONSERVATIVE RESULTS Watermark detection depends on the detector and the evidence available. A “not found” result does not prove that no watermark exists. Some watermark systems require private keys, profiles, or proprietary models that are not available to this app. Watermark Inspector fails closed when evidence is insufficient and does not present a statistical signal as verified ownership or authenticity. Watermark Inspector is an inspection tool. It does not guarantee authorship, ownership, authenticity, or the absence of editing.