Passport photo requirements by country: dimensions, backgrounds, and rules

Passport photo rejections usually stem from dimensional errors rather than photographic quality: a crown-to-chin measurement exceeding limits, a tinted background, or an incorrect print resolution.

Below is the dimensional reference across 30 passport agencies, along with the operational rules governing biometric capture.

The two primary passport photo standards

Most national specifications derive from two standard formats:

The 35 × 45 mm portrait: The ICAO (International Civil Aviation Organization) standard applied across Europe, the UK passport photo format, the Australia passport photo format, the New Zealand passport photo format, and most of Asia and Africa. Required head height ranges between 32 and 36 mm (29–34 mm in the UK). Backgrounds require neutral light grey or cream.

The 2 × 2 inch (51 × 51 mm) square: The US passport photo standard from the Department of State, also used for an India passport photo and a Saudi Arabia passport photo. Head height ranges from 25 to 35 mm (1 to 1.375 inches) against a pure white background.

Exceptions include a Canada passport photo and a Brazil passport photo (50 × 70 mm), a China passport photo (33 × 48 mm), a United Arab Emirates passport photo (43 × 55 mm), a Türkiye passport photo (50 × 60 mm), and a Malaysia passport photo (35 × 50 mm).

Reference table of national requirements

Dimensions are in millimetres. Head height measures distance from bottom of chin to top of crown (hairline):

All printed passport photos require an output resolution of 300 DPI. A 35 × 45 mm image printed at 300 DPI contains exactly 413 × 531 pixels.

Verify specific rules with your national issuing agency before submitting. Some jurisdictions enforce special provisions regarding religious headwear, infant poses, or digital photo codes.

The biometric purpose of passport rules

Passport rules enable automated facial recognition systems at immigration checkpoints:

• Head height ranges ensure the biometric camera captures a consistent number of pixels across facial landmarks (eyes, nose bridge, mouth corners).
• Uniform backgrounds allow automated segmentation algorithms to distinguish hair and shoulder contours from the backdrop without confusing edge boundaries.
• Neutral expressions and open eyes keep facial proportions in canonical alignment. Smiling pulls mouth corners and alters cheek contours, throwing off geometric matching vectors.
• Exclusion of eyeglasses: Most modern standards (US, UK, Schengen, Australia) ban glasses. Lens glare, reflections, and frame rims obscure the periocular region, which carries significant biometric matching weight.
• Balanced lighting: Directional shadows cast by overhead lights obscure eye sockets or distort jawline profiles.

Common reasons for rejection

1. Incorrect head proportion: Cropping tightly like a portrait photo often produces a head height exceeding the legal maximum. A passport photo is a measurement rather than a portrait, and the instinct that makes a flattering crop is the instinct that fails it.
2. Background colour shifts: An indoor white wall illuminated by warm incandescent lighting registers as yellow or cream in digital captures. A grey wall in shade records as blue-grey. The camera's white balance adapts so the wall looks right to you; the file does not necessarily agree.
3. Drop shadows behind the subject: Standing immediately adjacent to a wall casts hard shadows behind the head and shoulders.
4. Insufficient resolution: Submitting photos under 300 DPI results in rejection during digital pre-screening. A 400 × 500 pixel image at 35 × 45 mm works out near 290 DPI and generally passes; a 200 × 250 pixel image is around 145 DPI and does not. Photographs pulled from social media accounts usually fall in the second group.
5. Expression and posture defects: Tilted head, teeth showing, or hair covering eyebrow arches.

Photographic quality in the artistic sense appears nowhere on that list. A flat, unflattering, evenly lit capture passes. A beautiful one with a shadow behind the head fails.

Capturing a compliant photo at home

To produce an acceptable capture using a smartphone:

• Distance from wall: Stand approximately one metre away from a flat wall to prevent cast shadows.
• Lighting: Face a window during daylight hours. Turn off overhead household lighting to avoid dark shadows under the eyes and nose.
• Camera placement: Have a second person hold the camera at eye level two metres away, using the telephoto or main rear lens. Avoid close-range front-camera selfies; wide lenses held at arm's length cause barrel distortion that enlarges the nose and narrows ear visibility.
• Framing: Frame from mid-chest to above the head, leaving ample margin. Crop to legal dimensions afterward, because a crop can always be tightened and never loosened.
• Expression: Neutral, mouth closed, eyes open, looking straight into the lens, with both ears visible if hair allows.

Cropping to the specification is the step that resists doing by eye, since it depends on a chin-to-crown measurement in millimetres rather than on how the frame looks.

OpusImg's passport photo tool automates landmark detection, aligns chin-to-crown dimensions into the required legal window, applies compliant background tones, and exports printable sheets at 300 DPI.

Printing specifications

When printing physical photos:

• Disable print scaling: Print at 100% scale. Deselect "fit to page" or "shrink to printable area", which alter physical dimensions.
• Use dedicated photographic paper: Submit glossy or semi-gloss photo stock; plain bond office paper is disqualified.
• Print via 4 × 6 inch sheets: Layout multiple passport photos onto a standard 4 × 6 inch print canvas and trim using a straightedge and craft blade. A high-street photo service prints a 4 × 6 sheet for a few pennies, which undercuts a booth session and yields spare copies. Most applications ask for two.
• Cut the sheet yourself: Ask the shop for the full uncropped print. A counter trim applied to the wrong edge changes the head height that was measured so carefully.

More home-produced passport photos fail during printing than during the photography, and almost all of those failures trace back to scaling.

Digital portal submissions

Online visa and passport renewal systems evaluate image files automatically:

• File size constraints: Many portals enforce strict limits between 100 KB and 2 MB. Apply image compression at quality 85 to meet size limits without blurring facial details. A compliant 4 MB photo needs compressing rather than re-shooting, and quality below about 85 puts visible artefacts on a face, which is itself grounds for rejection.
• Pixel dimension bounds: Portals commonly specify both a minimum and a maximum, and an oversized submission is refused as readily as an undersized one.
• Format compatibility: Most systems require baseline JPEG. iOS devices save photos as HEIC by default; convert files to JPEG before upload.
• Header data: Certain immigration portals reject files with metadata tags indicating image-manipulation software.

Privacy considerations with biometric data

A passport photo represents biometric data tied directly to identity records. Uploading portrait captures to untrusted third-party services creates unnecessary privacy exposure.

In OpusImg, face detection, the compliance checks, and cropping run locally in your browser tab. Background replacement is the exception: it uses the AI background-removal model, so that one step uploads the photo to our servers, and the tool is labelled accordingly. If you already have a plain, evenly lit background, you can crop without it. For scans of physical identity cards, our ID card cropper straightens and crops documents entirely on-device.