Title: edit_custom_thumbnail_sizes
Published: May 25, 2022
Last modified: August 8, 2023

---

# apply_filters( ‘edit_custom_thumbnail_sizes’, bool|string[] $edit_custom_sizes )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#wp--skip-link--target)

Filters whether custom sizes are available options for image editing.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#parameters)󠁿

 `$edit_custom_sizes`bool|string[]

True if custom sizes can be edited or array of custom size names.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#source)󠁿

    ```php
    */
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-admin/includes/image-edit.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-admin/includes/image-edit.php#L54)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/image-edit.php#L54-L54)

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/edit_custom_thumbnail_sizes/?output_format=md#changelog)󠁿

| Version | Description | 
| [6.0.0](https://developer.wordpress.org/reference/since/6.0.0/) | Introduced. |

## User Contributed Notes

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