Do you want to add custom image sizes to the Add Media dialog box? With this little snippet, you can add custom image sizes to the Add Media dialog box.
Instructions:
All you have to do is add this code to your theme’s functions.php file or in a site-specific plugin.
Optionally add more image sizes to the if statement on line 1 through 3.
if ( function_exists( 'add_image_size' ) ) {
add_image_size( 'new-size', 300, 100, true ); //(cropped)
}
add_filter('image_size_names_choose', 'my_image_sizes');
function my_image_sizes($sizes) {
$addsizes = array(
"new-size" => __( "New Size")
);
$newsizes = array_merge($sizes, $addsizes);
return $newsizes;
}
Note: If this is your first time adding code snippets in WordPress, then please refer to our guide on how to properly copy / paste code snippets in WordPress, so you don’t accidentally break your site.
If you liked this code snippet, please consider checking out our Envira Gallery Review.
[…] Source […]
For the life of me I can’t add a new media size to the “add media” section of my WP post editor. In media settings, I have changed the sizes and that didn’t work. I added code to the functions.php file in a child theme and that didn’t work either. I regenerated all thumbnails, and checking the server I can see the new file sizes are created.
In my media settings, I have max width as 1367 to match my theme content area. File sizes on the server are 1376 wide. When I add the “Large” image to my post it actually adds the 1376 wide file but adds width=840 to the code and I can’t find where that setting is.
You may want to check that the theme itself is not affecting the new image size.