Link templates are used to render download manager package and category short-code. Link templates usually for showing summery type info of a package, here is a example comparative image for a random package:
1. Selected Link Template in “Add New Package” page:

2. In background, below code is selected for link template:
<div class="col-md-6">
<div class="thumbnail">
<div class="media">
<a class="pull-left" href="[page_url]">
[thumb_60x60]
</a>
<div class="media-body">
<h4 class="media-heading">[page_link]</h4>
[download_link] <i class="fa fa-th-large"></i> [file_size] <i class="fa fa-download"></i> [download_count] downloads
</div>
</div>
</div>
</div>
3. If you embed this package in a page or post with short code [ wpdm_package id=”614″] (here 614 is package id), at front end this will look like below figure:

Learn More About:

Where do you edit the price and add to cart part of the template?
Here http://www.wpdownloadmanager.com/doc/using-premium-package/interface-changes/