The first key to nail trimming success is getting your pup used to having his feet handled. Once this is achieved, nail maintenance should not be traumatic, as carefully removing the tips of the nails will not hurt.
However, some dogs are finicky about their feet, and some just don't like the feeling of being held in one spot for that long. In these cases, there are other methods to try.
If you've never clipped a dog's nails before, be sure to have your veterinarian or breeder demonstrate how to do it correctly and safely. Styptic powder will also come in handy in case you accidentally cut the quick and cause bleeding.