I do apologise, the wording of my question left a lot to be desired.

I want to place a pdf from online and make it available so that customers can (a) complete it online and then print it out (b) print it out and complete it manually or (c) complete it and send the information to me securely.

I can make the form I just don't understand how to apply the technology that will keep the information secure and then give me access to it

Kind regards

Mike