apply_filters( 'jpeg_quality', int $quality, string $context )

Filters the JPEG compression quality for backward-compatibility.


Applies only during initial editor instantiation, or when set_quality() is run manually without the $quality argument.

The WP_Image_Editor::set_quality() method has priority over the filter.

The filter is evaluated under two contexts: ‘image_resize’, and ‘edit_image’, (when a JPEG image is saved to file).

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$quality int
Quality level between 0 (low) and 100 (high) of the JPEG.
$context string
Context of the filter.

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File: wp-includes/class-wp-image-editor.php. View all references

$quality = apply_filters( 'jpeg_quality', $quality, 'image_resize' );

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Version Description
2.5.0 Introduced.

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User Contributed Notes

  1. Skip to note 1 content
    Contributed by behzadg

    To change JPEG Compression, temporarily add the below code to functions.php then refresh the site to re-compress all thumbnails on the site.

    function my_prefix_regenerate_thumbnail_quality() {
    	return 80;
    add_filter( 'jpeg_quality', 'my_prefix_regenerate_thumbnail_quality');

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