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Passport Photo AI

Passport photo size converter: reuse one photo for other countries

Dual citizens often need a US 2 × 2 inch photo (600 × 600 px) and a UK 35 × 45 mm one (413 × 531 px) from the same sitting. Passport Photo AI can reformat a photo you already took for a different country or document, with no new shoot — it just needs Pro and the original stored in History.

2 min read · Updated 2026-08-04

Download on the App Store

When converting saves you a photo shoot

Dual citizens, people applying for a visa and a passport at once, families moving abroad — they often need the same face in two or three formats. Converting reuses a photo that already worked instead of setting the lights and the wall up again for no real reason.

Why it re-processes the original instead of resizing

Stretching a square photo into a 35 × 45 mm rectangle distorts your face — that much is obvious once you try it. Less obvious: head height rules differ between countries too, so a straight resize would get the proportions wrong even without the stretch. The app instead keeps your original capture (scaled to 2,500 px on its longest side) and runs the full process again: face detection, background for the new spec, crop to the new head-height range, scale to the new pixel size.

One original photo, three outputs
TargetPrint sizePixels at 300 DPIHead height
US passport2 × 2 in600 × 60025–35 mm
UK passport35 × 45 mm413 × 53129–34 mm
Canada passport50 × 70 mm590 × 82631–36 mm

Two ways to convert in the app

  1. Right after exporting: on the export screen, tap Make this photo for another country, then pick the new country and document.
  2. Later: open History, swipe right on a saved photo and tap Convert, then pick the new country and document.
  3. The photo goes straight to processing, no camera needed. Read Photo Check for the new spec.
  4. Tap Use This Photo and export as usual.

Honest limits

  • Converting is a Pro feature. Without Pro the app opens the upgrade screen.
  • It needs the original capture. Photos saved before conversion existed only kept the cropped result; for those the app shows Re-take to convert, and you need a new photo.
  • Converting into a US passport, US visa or Green Card photo uses your original background, not a replaced one, so the original wall must already be plain and light.
  • The app does not compress to a target file size in KB. If a portal asks for, say, a maximum of 50 KB, check the file size before you upload.

Questions and answers

Is the passport photo size converter free?
No. Converting a saved photo for another country is part of Pro. Taking a new photo for each country is free.
Can I convert a photo I imported?
Yes, as long as it was saved to History after the conversion feature existed, because the app stores the original alongside the result.
Will the converted photo pass the new country's check?
Not always. The head-height range and background change with the country, so read the new Photo Check result and retake if it shows a critical issue.

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