how can I load a PDF file into the Terms&Conditions field?
If I copy my word file in it, the field dont scroll.
Or how can I do it with a check box, that the checkbox label links to the terms pdf file.
I believe, as you've embedded all your terms and conditions in the text area, you don't need to link to a separate page. That would be a usability issue.
However, I've notified the developer team for your requirement. Hope to get a fix soon.