I want to show this image description in LightBox as image caption but by default, the input area is a textbox which has limited length.
Again, Google always helps solving programmer’s headache. We can easily change the image description textbox into a textarea with a much longer length. Add the following 2 lines in sites/default/settings.php.
$conf['filefield_description_length'] = 1024; $conf['filefield_description_type'] = 'textarea';