Enfants Img Performer

Enfants Img Performer converts your WordPress images to WebP automatically on upload and detects AI-generated images for EU AI Act Art. 50 compliance – without sending a single byte to an external service. Everything runs on your own server, without limits.

The separately available Enfants Img Performer PRO plugin unlocks AVIF conversion, bulk optimization and AI-powered alt text generation.

Why Img Performer?

Most image optimization plugins send your images to a third-party cloud service for processing – often with monthly quotas and accounts required. Img Performer is different: it uses PHP’s built-in GD library (with Imagick as fallback) to convert images locally. Your images never leave your server. No account needed. No monthly limit.

What it does

• Converts JPEG and PNG uploads to WebP automatically – unlimited, free
• Converts all registered image sizes (thumbnail, medium, large, custom)
• Rewrites src, srcset, href (lightbox) and lazy-load attributes in the frontend
• Deletes WebP files when the original image is deleted
• Logs all conversions for transparency
• Configurable quality setting (1–100, default 85)
• CO₂ savings tracker with optional anonymous global statistics
• Detects AI-generated images on upload and labels them for EU AI Act Art. 50 compliance – see below

The separately available Enfants Img Performer PRO plugin (installed alongside this plugin) adds:

• AVIF conversion – up to 50% smaller than WebP
• Bulk Converter – convert your entire media library in one click
• AI Alt Text Generator – WCAG-compliant alt texts via Mistral, Claude or OpenAI
• AI labeling in Alt-Text – optionally append a disclosure note to the alt text of AI-classified images

EU AI Act Art. 50: AI image labeling

From August 2, 2026, AI-generated images published on a website must carry machine-readable labeling under Article 50 of the EU AI Act. WordPress itself strips this information the moment it generates thumbnails on upload (WordPress/ai issue #421, unresolved) – Img Performer works around that:

• Detects AI provenance in newly uploaded images (based on embedded metadata such as C2PA manifests, where present)
• Writes its own hosting-independent labeling into the original and every generated image size – no Imagick required
• Shows a visible “AI-generated” badge on the frontend, toggleable
• Lets you manually correct the automatic classification directly in the Media Library
• Shows an “AI Labeling” status column and Alt-Text presence indicator in the Media Library list view, with a “Needs review” filter for unclassified images
• Only applies to new uploads – your existing media library is not scanned or changed retroactively

The separately available PRO plugin additionally lets you append a disclosure note to the image’s alt text itself when it’s classified as AI-generated (optional, per image).

This labeling is based on the IPTC “Digital Source Type” standard field and meets the technology-neutral requirements from the EU AI Act Code of Practice. It is not a cryptographically signed C2PA manifest – producing one would require certification through the official C2PA Conformance Programme, a separate process this plugin does not perform.

GDPR / DSGVO

Enfants Img Performer processes all images exclusively on your own server. No image data, IP addresses or personal information is transferred to external services. No API keys required.

The only optional external connection is the anonymous CO₂ statistics feature (opt-in, disabled by default). When enabled, it sends only total bytes saved to our EU-based server – no IP address, no domain, no personal data.

Requirements

• WordPress 6.0 or higher
• PHP 7.4 or higher
• GD extension with WebP support (imagewebp)

External Services

This plugin can optionally send anonymous usage data to an external service operated by Enfants Terribles digital GmbH.

CO₂ Statistics (opt-in, disabled by default)

When you enable “Global sustainability stats” in the plugin settings, the plugin sends the following data once per day to our EU-based server:

• An anonymous random site ID (UUID v4, generated locally, no personal data)
• Total bytes saved through WebP conversion

No images, no IP addresses, no domain names and no personal data are transmitted. The anonymous site ID cannot be traced back to you or your website.

This data is used solely to display a global CO₂ savings counter on the plugin website.

• Service: Enfants Terribles digital GmbH (EU-based server, Netcup, Germany)
• Endpoint: https://tools.enfants.de/imp-stats/
• Privacy Policy: https://img-performer.enfants.de/datenschutz/
• Terms of Use: https://img-performer.enfants.de/nutzungsbedingungen/