How we check what we publish

People submit applications on the strength of what is written here. Get a head-height band wrong and someone loses an appointment. So every dimension, file limit and deadline on this site traces to a named authority, with the date we last read it and a deadline for reading it again.

No number without a source

Every measurement comes from a specific government page or international standard, recorded in a source registry alongside a verbatim quote. The quote matters: when an authority quietly reworks a page, the difference shows up the next time we check.

The 17 English pages currently rest on 14 external sources, 13 of which have a quote on file.

What we could not open ourselves

This is the part most sites leave out. Of those 14 sources, 3were read directly on the authority's own site. The other 11could not be. The State Department's passport photo page answers automated requests with a 403 while its visa photo page does not, which is why that host appears twice below with two different answers. passports.gov.au times out, and several consulates publish their specification only inside a PDF behind a page that does the same. For those, the figures come from independent sources that agree with each other and attribute the requirement to that authority.

That is weaker evidence and we mark it as such in the table below, rather than presenting all of it as first-hand. Where a source is genuinely ambiguous we say so on the page itself. The Japan visa entry is the clearest case: the Ministry of Foreign Affairs publishes 45 by 45 mm while many consulates also accept the ICAO 35 by 45 mm, so we print both and tell you to confirm with the consulate handling your application, instead of picking one and sounding confident.

How often we check again

Different sources go stale at different rates, so each type gets its own cycle. Once it lapses, an automated test in our repository blocks the release until a person opens the source page and confirms the figures still hold.

Visa requirements move more than passport requirements, which is why they sit on the shorter cycle. Nothing here is on a yearly cadence except ICAO Doc 9303, which is a published standard with a revision history rather than a web page that can change overnight.

When we get it wrong

The English pages went live in September 2026, so there is no correction history on this domain yet. When there is, it goes here, in plain terms, with the date. A page about verifying content that never lists its own mistakes is not worth much.

Found an error? Write to contact@docphotoai.com. We fix it, and we record it.

What we rely on

Every external source behind the English pages, with the date we last confirmed it and whether we read it on the authority's own site.