Kroma Lab

Passport Photo Size Requirements: What Size To Use

Blue passports stacked closely together on a flat surface

Passport photo size requirements trip people up for a simple reason: the pixel dimensions and the file size are two different limits, and most application portals only clearly explain one of them. Here's how to get a compliant photo without guessing.

Two different limits, easy to confuse

Passport and visa applications almost always specify a pixel dimension (like 600x600px) for the photo itself — that's about composition and print quality. Separately, the upload form usually caps the file size, often somewhere in the 200KB-2MB range depending on the agency. A photo can be the right dimensions and still get rejected for being too many kilobytes, which is the part people don't expect.

Why your phone's photo is way over the limit

A modern phone photo straight out of the camera is commonly 3-10MB. Passport portals were never built to store or transmit files that large — they're expecting a small, compressed headshot, not a full-resolution capture. That gap is exactly why compression works so cleanly here: you're removing far more file size than visual detail, especially on a simple, evenly-lit headshot with a plain background.

Getting your photo to the right size

  1. Start with the 2MB target if your form doesn't specify a number — it clears most passport and visa portals without visible quality loss. Use the compress-under-2MB tool.
  2. If your form gives a smaller number (some government portals cap well under 1MB), the same tool lets you compress further — check the before/after preview to confirm the result still looks sharp at that size.
  3. Check the pixel dimensions separately. Compressing changes file size, not composition — if your photo doesn't meet the required dimensions or framing (head position, background, no glasses glare), that's a photography fix, not a compression one.

What if the portal doesn't state a number at all?

Some passport and visa sites list pixel dimensions clearly but bury or omit the file size cap entirely, leaving you to find out by trial and error. In that case, target 1MB — it's small enough to clear nearly every portal we've seen, while staying well above the point where quality loss becomes visible on a simple headshot.

Before you submit

  • Recheck the file after compressing. A file that reads "1.2MB" in one file manager view can round differently elsewhere — confirm the actual number against the stated limit.
  • Keep the background and lighting simple. Compression handles flat, evenly lit backgrounds better than busy or shadowed ones, so a clean original photo compresses more cleanly.
  • Save a copy of the original. If a different application later asks for different dimensions, you'll want the uncompressed source rather than re-compressing an already-compressed file.

A rejected passport photo upload rarely means your photo is wrong — it usually just means it's too many kilobytes. Fix the number, not the picture.