I see that Salient generates 19 different sizes for each of my images. This is generating a huge number of files on my hosting server. To avoid taking up unnecessary server space, I would like to remove the sizes that are not used.

1) I have seen the documentation how to remove the sizes but they don't seem to correspond to the number of sizes I have.

2) But my main question is - how can I determine which sizes are not used in my website? If I remove a size, will the next size up or down be chosen or will I have a blank space?

Thank you in advance for the advice.

Hello Andrew

Thank you for your reply. I don't mean the 3 sizes generated by WordPress I mean the files generated by Salient. In the ecommerce ultimate demo I installed I count 17 instances of each image. See attachment.

In the documentation you explain how to remove the image size but they don't correspond to the sizes I have and how do I remove all the unwanted ones once they are created and which are the essential ones?

Dear Andrew,

The documentation says to change file functions.php, you tell me to change file /nectar/meta/category-meta.php file but actually I found the image sizes in /nectar/helpers/media.php

So my main question is out of all these sizes which ones are necessary for the correct functionning of the website?

if ( ! function_exists( 'nectar_add_image_sizes' ) ) {
    function nectar_add_image_sizes() {
        add_image_size( 'portfolio-thumb_large', 900, 604, true );
        add_image_size( 'portfolio-thumb', 600, 403, true );
        add_image_size( 'portfolio-thumb_small', 400, 269, true );
        add_image_size( 'portfolio-widget', 100, 100, true );
        add_image_size( 'nectar_small_square', 140, 140, true );
        global $nectar_options;
        $masonry_sizing_type = ( ! empty( $nectar_options['portfolio_masonry_grid_sizing'] ) && $nectar_options['portfolio_masonry_grid_sizing'] === 'photography' ) ? 'photography' : 'default';
        if ( $masonry_sizing_type !== 'photography' ) {
            
            add_image_size( 'wide', 1000, 500, true );
            add_image_size( 'wide_small', 670, 335, true );
            add_image_size( 'regular', 500, 500, true );
            add_image_size( 'regular_small', 350, 350, true );
            add_image_size( 'tall', 500, 1000, true );
            add_image_size( 'wide_tall', 1000, 1000, true );
            add_image_size( 'wide_photography', 900, 600, true );
        } else {
            
            // These three are still needed for meta overlaid masonry blog.
            add_image_size( 'regular', 500, 500, true );
            add_image_size( 'regular_small', 350, 350, true );
            add_image_size( 'wide_tall', 1000, 1000, true );
            add_image_size( 'wide_photography', 900, 600, true );
            add_image_size( 'wide_photography_small', 675, 450, true );
            add_image_size( 'regular_photography', 450, 600, true );
            add_image_size( 'regular_photography_small', 350, 467, true );
            add_image_size( 'wide_tall_photography', 900, 1200, true );
        }
        add_image_size( 'large_featured', 1870, 770, true );
        add_image_size( 'medium_featured', 800, 800, true );

Which are needed?

Thank you Andrew

So basically if I don't use Portfolio I go copy the file nectar/helpers/media.php to my child theme

I disable the line for the image sizes I don't need

I add this code??? to my functions.php file in my child theme?? Or something else?? 

Hoping you can clarify for me, I just need clear explanations to settle the issue please. Thank you

/**
 * General WordPress.
 */
require_once NECTAR_THEME_DIRECTORY . '/nectar/helpers/wp-general.php';

Thank you Andrew. So basically these 14 extra image sizes are created if you want to use a photography or portfolio grid but unnecessary if you are just using an ecommerce theme. 

It would be nice to have this as an option in the Portfolio section of the Theme Options for example.