prevent image large size duplicates

Hi,

Thank you for the inquiry.

It’s normal for WordPress and themes to generate different sizes or thumbnails for images. This helps avoid using the original or larger image when it’s not necessary. Each thumbnail is used based on the element or template where it needs to be displayed. If you want to prevent the theme from generating these thumbnails, you can add the following filter to your functions.php file:

// Disable loads of Enfold & WP image sizes upon upload
add_action('init', 'remove_enfold_image_sizes');
function remove_enfold_image_sizes() {
// do NOT remove widget size, is used in backend portfolio items!
// remove_image_size('widget');
  remove_image_size('square');
  remove_image_size('featured');
  remove_image_size('featured_large');
  remove_image_size('portfolio');
  remove_image_size('portfolio_small');
  remove_image_size('gallery');
  remove_image_size('magazine');
  remove_image_size('masonry');
  remove_image_size('entry_without_sidebar');
  remove_image_size('entry_with_sidebar');
  remove_image_size('shop_thumbnail');
  remove_image_size('shop_catalog');
  remove_image_size('shop_single'); 
  remove_image_size('shop_gallery_thumbnail');
}

Related thread: https://kriesi.at/support/topic/media-upload-and-enfolds-thumbnail-sizes/

Best regards,
Ismael

Hi,

Thank you for the update.

how can I tell which duplicates should not be removed as they are needed to properly serve content to all devices?

WordPress or the theme will automatically fallback to the original image when the required thumbnail is not available. As mentioned above, all those thumbnails are used for different elements or templates in the theme.

Is this good practice for the theme to create duplicates of an original image

The duplication or thumbnail generation process is not done by the theme, but by WordPress itself. If you need to decrease the overall size and quality of the image, you can use this filter in the functions.php file:

add_filter("avf_jpeg_quality", "avf_set_quality_mod", 9999, 1);
add_filter("avf_wp_editor_set_quality", "avf_set_quality_mod", 9999, 1);
function avf_set_quality_mod($quality) { $quality = 55; return $quality;}

This filter will set the compression quality from 100% to 55%.

I will also need to remove the duplicates from the server to clear space. I see this option is available only at the premium versions of some plugins.

You may need to manually delete the images and re-upload them again if you want to also clear the related database entries.

Best regards,
Ismael

Hi,
I recommend leaving these last 4 sizes, they are needed.
Removing them will force smaller devices to show the larger images, WordPress automatically shows the correct images.
If you use Ismael’s filter these images will not take a lot of space.

Best regards,
Mike

Hi,

I noticed that I had issues with posts featured image on post silder

It should automatically fallback to the original image when the required thumbnail is not available. Where can we see the issue?

Best regards,
Ismael

Hi,

Thank you for the info.

Try to remove this line in the remove_enfold_image_sizes function above.

remove_image_size('portfolio');

The post slider or the blog grid layout uses the “portfolio” thumbnail by default.

Best regards,
Ismael