One Step AI Image Marker adds a simple “AI-generated” checkbox to every image in your media library. One checkbox controls everything:

Visible badge on your website: flagged images get a discreet “AI-generated” overlay in the bottom right corner. On small images the badge automatically shrinks to a short label with a tooltip.
Machine-readable labeling in the image files: the plugin writes the IPTC digital source type trainedAlgorithmicMedia as XMP metadata directly into the image files (JPEG and WebP), including all size variants. Google reads this field and can show an AI notice for your images in image search.
Media library management: an “AI” badge on every flagged image, filters (“Only AI-generated” / “Without AI label”) in both the grid and list view, and bulk actions to flag or unflag many images at once.
Customizable badge: set your own badge text and pick the text and background colors under Settings AI Image Marker. Leave the fields empty to keep the translated default and the discreet default styling.

The plugin works with the block editor (Gutenberg), block-based themes, Kadence Blocks and Elementor. Classic editor content is covered as well. Featured images are supported through the standard WordPress thumbnail function.

Background: Article 50 of the EU AI Act (Regulation (EU) 2024/1689) introduces transparency obligations for AI-generated content, applying from 2 August 2026. This plugin provides the technical building blocks for labeling AI-generated images: a visible disclosure and a machine-readable marking following the IPTC standard. Whether and how the obligations apply to your website remains your responsibility; this plugin is a technical tool, not legal advice.

The plugin runs entirely on your server. It makes no external requests, loads nothing from third-party servers and collects no data.