Whisk together the flour, baking powder, baking soda,pumpkin pie spice, and salt in a medium bowl.
Using an electric mixer combine the oil, sugar, brown sugar, vanilla,and eggs in the mixing bowl until smooth. Add in the pumpkin puree beating until mixed.
Reduce the mixer to low. Slowly add in the flour mixture into the mixing bowl until the mixture is smooth.
Scoop the batter into the prepared loaf pan.
Sprinkle pumpkin seeds on the top.
Bake at 325 degrees for 50-60 minutes. Check to ensure that the bread is done by touching the top of the loaf. The loaf will feel slightly firm.
Insert a toothpick in the center of the loaf and if it comes out clean the bread is done.
Set pan aside to cool.
Once cooled then invert the loaf pan onto a serving platter.
Slice and then serve.
Notes
I prefer to use salted pumpkin seeds, and they give a nice salty flavor to the to of the pan. However, unsalted would also work.