=== Imadero ===
Contributors: onestepwebdesign
Tags: images, thumbnails, cleanup, media, optimization
Requires at least: 5.8
Tested up to: 6.9
Requires PHP: 7.4
Stable tag: 1.0.0
License: GPLv2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html

Remove auto-generated image thumbnails to free up disk space and keep your media library clean.

== Description ==

WordPress automatically creates multiple copies of every image you upload in different sizes (thumbnail, medium, large, and more). Over time, this wastes a significant amount of disk space, especially on large sites with thousands of images.

**Imadero** scans your media library, finds all auto-generated thumbnails, and removes them safely. It also updates all references in your posts, pages, and metadata to use the original image instead.

= Features =

* **Scan** your media library to find all auto-generated thumbnails
* **Preview** how many files and how much disk space can be freed before deleting anything
* **Delete** all thumbnails in batches (safe for large sites)
* **Rewrite** all database references (posts, meta, options) to use the original image
* **Prevent** WordPress from generating thumbnails on future uploads
* Handles serialized data safely (works with Elementor, Divi, WPBakery, and other page builders)
* Handles Gutenberg block attributes (sizeSlug, CSS classes)
* Removes WordPress -scaled images and restores the original
* Batch processing prevents timeouts on large installations
* Works with WooCommerce product images

= How It Works =

1. Go to **Tools > Imadero** in your WordPress admin
2. Click **Start Scan** to find all auto-generated thumbnails
3. Review the results: number of thumbnails and disk space used
4. Click **Delete Thumbnails** to remove them and update database references
5. Optionally enable **Disable automatic thumbnail generation** to prevent future thumbnails

= Important Notes =

* Always create a **backup** before running the cleanup
* The deletion process **cannot be undone**
* WordPress will automatically fall back to the original image where thumbnails were used
* The plugin works per site on Multisite installations

== Installation ==

1. Upload the `imadero` folder to the `/wp-content/plugins/` directory
2. Activate the plugin through the Plugins menu in WordPress
3. Go to **Tools > Imadero** to start cleaning up

== Frequently Asked Questions ==

= Will my images break after removing thumbnails? =

No. WordPress automatically falls back to the original image when a requested size is not available. Your images will still display correctly.

= Does this work with page builders like Elementor or Divi? =

Yes. Imadero safely handles serialized data in the database, which is how most page builders store their content.

= Can I undo the deletion? =

No. The thumbnail files are permanently deleted. We strongly recommend creating a backup before running the cleanup.

= Does this affect the original uploaded images? =

No. Only the auto-generated copies (thumbnails) are removed. Your original images are never touched.

= What happens with future uploads? =

By default, WordPress will continue to generate thumbnails for new uploads. You can disable this by enabling the Disable automatic thumbnail generation option in the plugin settings.

= Does this work on Multisite? =

Yes. The plugin works on a per-site basis. Each site administrator can run the cleanup independently.

== Screenshots ==

1. Scan results showing the number of thumbnails and disk space used
2. Cleanup in progress with batch processing
3. Settings to disable future thumbnail generation

== Changelog ==

= 1.0.0 =
* Initial release
* Scan media library for auto-generated thumbnails
* Delete thumbnails with batch processing
* Rewrite database references to use original images
* Prevent future thumbnail generation
* Safe handling of serialized data
* Gutenberg block attribute rewriting