Edit in JSFiddle

<h5>A Regular PDF Link Opening in a New Tab</h5>
<p><a href="http://test.pdf" target="_blank">Test PDF link</a></p>

<h5>A PDF Link With Size Attribute</h5>
<p><a href="/test.pdf" data-size="2 MB">Test PDF link with size attribute</a></p>

<h5>A PDF Link With Size Attribute, and the no-link-icon class</h5>
<p><a href="/test.pdf" data-size="2 MB" class="no-link-icon">Test PDF link with size attribute, no-link-icon</a></p>