Various ways to say "nice to meet you"
很高兴见到您。


means glad to see you. It's usually used if you know (or heard of) someone for a long time, but haven't seen him/her for sometime(first time in case of heard of). For example, you would use 很高兴见到您 to greet someone you know from the internet. It's a bit weird to say 很高兴见到您 to someone you know very well or see everyday.

If it's the first time you meet/know someone, I think 


  认识你，我很高兴。


is more suitable, which means I'm glad to know(meet) you.
you can also say 


  我很高兴认识你。


same meaning as above.

you can also say


  幸会


which means "glad to meet you", and is usually used when the first time you meet someone. Usually it's used twice together, so you would say 幸会,幸会 rather than just one 幸会.


  久仰大名


means "I've heard about you for a long time"


  见到您感到很荣幸


means "It's an honor to meet(see) you". Or


  认识您感到很荣幸


means "It's an honor to know you."


  初次见面,请多关照


It's originally from Japanese and often used in Taiwan. It means "It's the first time meeting you, please be kind."