Clothes, glasses, jewellery, hair and head coverings - what keeps a passport photo acceptable and what gets it sent back.
Light, background, distance and camera height for a passport photo taken with a phone, plus what software can and cannot fix afterwards.
Print a 4×6, 5×7, Letter or A4 sheet of passport photos at actual size, and what to do when the printer shrinks them.
The 2×2 inch rule, the 1 to 1⅜ inch head, the no-glasses rule and the file rules for online renewal, in one place.
UK photos are 35×45 mm with a 29–34 mm head on cream or light grey. How that differs from a US photo, and how the digital code works.
Newborns need passport photos too. How to get a usable one at home, and which rules relax for babies and which do not.
Every template in one table: frame in millimetres, pixels at 300 DPI, background colour and head height for 32 countries.