I need to create a form with multiple relationships between fields and I found that it can be done easily with DTR.
Once it's submitted, users should be able to print it in order to make entered data fill a certain PDF form they need to sign manually in order to partecipate to the event they chose.
Is there any feature or predisposition that can help me with this need?
DT Register does not dynamically create a PDF file nor does it add data into an existing PDF.
What you CAN do is customize the email the user receives using your WYSIWYG editor... lay it out with graphics, HTML, etc to look exactly how you need it. Use our email tags to dynamically pull your data into the email and right where you want it. The user can of course print that email.