How to add custom fields in contact form from mymodule?

[M.Arsalan]

I have no idea how to do this plz help me.

I failed to finding 

1. the tpl file of contact form.
2. the class or controller of contact form.

pleas help me how to do this task, I am new in prestashop.

 

what is my problem ?

see to picture.

I want to do this but have no idea 

help help 

[JBW]

They should be in /modules/contactform

To insert this fields at the desired positions I guess you will need an override. If bottom would be sufficient you can use hookDisplayGDPRConsent