PF2e Power attack + critical hit?

[mistermysterio]

Anyone able to definitively say whether the extra damage die from Power Attack in pathfinder 2 is doubled on a critical hit? The description from PA doesn't mention crits, but it seems like most damage is doubled on a crit.

Thanks

[stack]

Doubling and Halving Damage (https://2e.aonprd.com/Rules.aspx?ID=336)
Core Rulebook pg. 451
Sometimes you’ll need to halve or double an amount of damage, such as when the outcome of your Strike is a critical hit, or when you succeed at a basic Reflex save against a spell. When this happens, you roll the damage normally, adding all the normal modifiers, bonuses, and penalties. Then you double or halve the amount as appropriate (rounding down if you halved it). The GM might allow you to roll the dice twice and double the modifiers, bonuses, and penalties instead of doubling the entire result, but this usually works best for single-target attacks or spells at low levels when you have a small number of damage dice to roll. Benefits you gain specifically from a critical hit, like the flaming weapon rune’s persistent fire damage or the extra damage die from the fatal weapon trait, aren’t doubled.


Power Attack (https://2e.aonprd.com/Feats.aspx?ID=359)
Core Rulebook pg. 144
You unleash a particularly powerful attack that clobbers your foe but leaves you a bit unsteady. Make a melee Strike. This counts as two attacks when calculating your multiple attack penalty. If this Strike hits, you deal an extra die of weapon damage. If you’re at least 10th level, increase this to two extra dice, and if you’re at least 18th level, increase it to three extra dice.

The damage from power attack is not a benefit specifically gains from a critical, so the damage should be doubled on a crit. Could check the Paizo forums to see if there has been any specific discussion of the question, but the rules seem clear enough.