Allow your visitors to save/export your webpages as pdf. With Select.Pdf is very simple. Just add a link on your page and you are done.
<a href="https://selectpdf.com/export-to-pdf/?" onclick="if(!this.urlAdded)href+='&url='+encodeURIComponent(location.href);this.urlAdded=1">Save as Pdf</a>
For more details and parameters description, take a look at Save as Pdf feature main page.