In case of the
Save to PDF Link, there is no easy way to hide an element using just CSS at the moment. As more users have been asking for this, we are currently considering these options:
1. To add use_print_media parameter which would use the print CSS media type:
http://pdfcrowd.com/url_to_pdf/?use_print_media=1
2. To not to print an element with a specific class name to PDF:
<a href="http://pdfcrowd.com/url_to_pdf/" class="pdfcrowd-hide">Convert this page to a PDF</a>