C2PA metadata testing

README.md

To validate these files, check out the Content Credentials Verify tool.

• Sample file with C2PA metadata
• Scaled file with original metadata (generated by WordPress with imagick and mu-plugin below)

keep-image-metadata.php

<?php
/**
 * Prevents stripping of metadata from images.
 *
 * See: https://developer.wordpress.org/reference/hooks/image_strip_meta/
 */

/*
 * This filter only applies when resizing using the Imagick editor since GD always strips profiles by default.
 */
add_filter( 'image_strip_meta', '__return_false' );