In the past I've made several forms for a few companies. When they demand a fillable distributable PDF I could give them what they needed by changing the preferences of Acrobat (email-adress and name in ID-section) and distributing the form.
Can I make a webform with Formcentral as well, and let someone else collect all the data? Do they need to have a Formcentral licence like I do?
If you create the form you'll always have access to the data. You can share the form file (including responses) with other people. Those people do not need licenses to FormsCentral.