watermarks-remover

Watermarks-remover strips AI provenance marks from text and files: invisible Unicode watermarks (zero-width characters, bidi marks) from text, and C2PA manifests, EXIF, and XMP metadata from images, PDFs, and Office documents. It ships as an agent skill plus standalone Python scripts, MIT licensed, stdlib-only at the core. The legitimate use is real: invisible Unicode breaks diffs, search, and paste, and metadata on your own files is yours to remove.

The honest part is what it admits it can't do. Deterministic removal covers Unicode and file metadata; statistical watermarks baked into AI text get best-effort rewriting that degrades the prose, and the project says so. Its own ethics doc rules out academic fraud and disclosure-dodging, and states plainly that a removed mark doesn't mean the content was never AI-assisted.

Use it for hygiene on files you own. For pure image metadata work, exiftool and mat2 are the incumbents, and this wraps rather than replaces them.

The catch: it cannot verify its own success against the strongest watermarks, and if your reason for reaching for it is a disclosure rule, the tool's own documentation tells you not to. It's also brand new, so treat the polish as unproven.