What about a version that doesn't need to install anything, like Google Translator? <a href="https://translate.google.com/translate?tl=es&u=https%3A%2F%2Fqrprint.me%2F" rel="nofollow">https://translate.google.com/translate?tl=es&u=https%3A%2F%2...</a>
<p><pre><code> <style>
@media print {
a:after {
content: ' [' attr(href) '] ';
}
}
<style>
</code></pre>
Bonus 1: stays in the text flow, so no weird spacing issues<p>Bonus 2: no need to scan QR codes