+function custom_woo_pd_get_filename_dynamic_filename( $output, $filename ) {

+

+    // Check we are dealing with https://images.sample-domain.com/is/image/dynamic/products/...

+    if( strpos( $filename, 'images.sample-domain.com/is/image/dynamic/products' ) !== false ) {

+        $output = basename( $filename );

+        // Strip the filename down to the ? character

+        $pos = strpos( $output, '?' );

+        $output = substr( $output, 0, $pos );

+    }

+

+    // Check if the filename contains .tif and replace it with .jpg

+    if( strpos( $output, '.tif' ) == false )

+        $output = str_replace( '.tif', '.jpg', $output );

+

+    return $output;

+

+}

+add_filter( 'woo_pd_get_filename_dynamic_filename', 'custom_woo_pd_get_filename_dynamic_filename', 10, 2 );