I need a program to insert padel courts in an area 2D

I am attaching a link to what we need, we sell padel courts and we need the customer to provide us lenght x width and the customer can insert and turn and do the layout of their padel club. the sistem should ask for the customer e-mail so it can send the customer the layout in a pdf format. If you have done something similar please tell us. We have server and domain.. The planner would be inserted in our website..
https://www.padelcreations.com/padel-floor-planner/