Stampwise – AI Image Label & Watermark

Description

Since August 2026, the EU AI Act (Article 50) requires AI-generated and AI-manipulated images to be disclosed. Stampwise helps you find those images in your Media Library and label them clearly — and take the label off again if you change your mind.

Find AI-generated images

Stampwise checks new uploads for the signals AI tools leave behind and flags them in the Media Library:

• C2PA content credentials and IPTC “digital source type” metadata (used by Adobe Firefly, OpenAI, Google and others)
• Generation parameters written by Stable Diffusion (AUTOMATIC1111 / Forge), ComfyUI, InvokeAI and NovelAI
• Generator names in EXIF / XMP (Midjourney, DALL·E, Imagen / Gemini, Firefly, FLUX, Ideogram, Leonardo.Ai, Microsoft Designer, Meta AI and more)
• Default file names used by ChatGPT, Gemini, DALL·E, Midjourney, Firefly and others

Flagged images get an “AI detected” badge, and one click on AI-generated above the Media Library shows them all. To check images you already have, select them in the list view and choose Check for AI-generated images.

Detection is a helpful signal, not proof: images that were screenshotted, re-saved or stripped of metadata can’t always be recognised, so keep labelling anything you know is AI-generated.

Label them

Add a clean, readable “AI-generated” badge to any image — one at a time or in bulk. Choose the text (any language), corner and size. Labels are drawn onto every image size, so they stay visible wherever the image is shown, and they can be removed in one click.

Watermark the rest

Stampwise is also a complete watermark plugin:

• Text or logo watermarks, in any of 9 positions or as a tiled, rotated pattern
• JPEG, PNG (with transparency), WebP, AVIF and GIF
• Undo anytime. Originals are kept in a private folder; removing a watermark restores the exact original file
• Never stacks. Re-applying starts from the original, and regenerating thumbnails is safe
• Live preview of your unsaved settings on any image from your library
• Automatic on upload, bulk actions, and buttons on every image
• Keeps EXIF, IPTC, XMP and color profiles in JPEGs
• Works even on hosts whose image library lacks font support
• WP-CLI: wp stampwise apply --all, remove, label, reset, status

Stampwise Pro

• Label automatically: flagged uploads get the “AI-generated” label as soon as they are uploaded
• Scan your whole library in one click and label everything that looks AI-generated
• Machine-readable disclosure: embeds the IPTC trainedAlgorithmicMedia digital source type into labeled JPEG and PNG files, alongside the visible label
• Whole-library watermark tool with a progress bar: watermark everything, re-apply a new design, or restore every original
• Rules: only watermark uploads for certain post types — for example WooCommerce product images
• Dynamic watermark text: {year}, {domain}, {site}, {author}, {filename}

Privacy

Stampwise processes images on your own server and never sends your images anywhere. Upgrades and licensing are handled by Freemius: the plugin only shares basic site data (URL, versions) if you opt in on first use or activate a license. See the Freemius privacy policy.

Technical details