Preheat your oven to 400°F (200°C).
In a mixing bowl, combine the butter, parsley, thyme, dill, salt, and pepper. Mix well.
Cut sheets of parchment paper into large rectangles, about 12x16 inches.
Place a fish fillet in the center of each parchment sheet. Spread a generous amount of herb butter over each fillet.
Fold the parchment paper over the fish, creating a half-moon shape. Seal the packet tightly.
Place the packets on a baking sheet and bake for about 15-20 minutes.
Carefully open the packets and serve with lemon wedges.