Nail clipping problem

I have not tried to clip my poms nails until now, since I've only had him 2 weeks. So I tried today and he snaps at me - I tried the pedi paws, but he dosen't like his paws touched much anyway.
So I don't know what to do, he is a very sweet dog, he just does not like his paws fooled with.
Should I muzzle him? I really would rather not, cause I would think this would make him more afraid to have his paws touched at any time, right?
So I don't know which way to go with this...PLEASE HELP!
Thanks!