Custompress upload pdf for download

Hi I am trying to create a custom post type that has a custom field for uploading a pdf that can then be downloaded. This is fine but I can't seem to show this file on the front end in the post so the user can download it.

I've created a custom page template and placed the code where I would like it(just displays an image) but I can't link the file to download. Any help please.

<?php echo do_shortcode('[tax id="publication_type" before="Download the full Publication" separator=", " after=" here"]'); ?>
			<?php echo the_title(); ?>
			<?php echo do_shortcode('[ct id="_ct_upload_56fd74b48fc2a" property="title | description | value"]'); ?>

Thanks in advance.