Rules, guides, and honest limits — the things people search for before they trust a tool with their face.
2×2 inch size, 25–35 mm head height, plain white background, no glasses, and the AI rule that trips up most home edits.
Scan at 600 DPI in colour, never tape a torn print, repair in the right order, and archive with the 3-2-1 rule — plus what AI genuinely cannot fix.
Where AI wins (cost, speed, team consistency), four cases where you should book a human instead, and the three tells that give an AI portrait away.