You have to put your case clear to them and even state why you are sending to them PDF docs,if they say yes,then you have the green light to do so and likewise in the event they say no.I dont see y they should deny you acceptance.
Like i told you before,they will offer you what is called conditional letter of acceptance in which you willhave to produce your original documents when you arrive at the college.
For example,you can tell them that exams certificates are only issued once and not replaceable your country and therefore your are scared of sending them over.I believe this should work.
Need more help? Am availabe.
Good luck