The “ims_download_image_preview” filter is used to modify the preview file path for download when other file sizes have not been found.

A plugin (or theme) can modify the path with the code:

<?php add_filter( 'ims_download_image_preview', 'filter_function_name'); ?>

The hook is located in the image-store/admin/download.php file.


// Apply filter
function change_ims_download_image_preview( $filepath, $file_id ) {
	return "/file/path/to/original/file.png"; 
add_filter('ims_download_image_preview', 'change_ims_download_image_preview');

Note:  $filepath is a string and $file_id is an integer.

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