Here are some ways to say it in English, depending on the context:
Formal:
* It's a pleasure to meet you.
* I'm delighted to meet you.
* I'm very pleased to make your acquaintance.
Informal:
* Nice to meet you.
* It's nice to meet you.
* Pleasure to meet you.
You can also say "I'm charmed" or "I'm enchanted" if you want to be more poetic or playful.
The best way to say it depends on the situation and your relationship with the person.