Saving your offer report as a PDF can be done in most desktop browsers by clicking the print button and then selecting to Save As PDF instead of printing. On mobile devices (phones and tablets), this is usually done by clicking the share icon and then selecting to Create PDF.

Here are instructions to save the offer report page to PDF for most desktop and mobile browsers: 
https://www.digitaltrends.com/computing/how-to-save-a-webpage-as-a-pdf/