I need a PDF turned into a form

I have a pdf document with fillable boxes but at the moment you can only print it off to fill it in, I want to make it so that people can download, fill in on their phones or laptops then send it back to us through email.

I've tried in acrobat but it keeps crashing and I need it done relatively quickly. It shouldn't take too long.

Example show, but this is two pages that need filling. So each row has one clickable box. Document to be sent to the awarded applicant.

More work could follow so ideally would like to work with a UK based freelancer.