Preheat oven to 350 degrees.
In a medium bowl, combine the flour, baking powder, cinnamon, salt, and baking soda. Set aside.
In a mixing bowl, beat together the eggs, sugar, oil and pumpkin until fluffy. Add dry ingredients (flour, baking powder, cinnamon, salt, and baking soda) to pumpkin mixture until fully combined.
Spread batter in a greased 17x12 jelly roll pan. Bake 20-25 minutes or until it passes the toothpick test.
Cool completely.