There is a particular kind of frustration reserved for government upload forms. You take a photo, you upload it, and the page says "Photo does not meet requirements". It does not say which requirement. You try again, slightly differently. Same message. An hour later you are cropping in Paint and questioning your life choices.
Here is the thing worth knowing: the form is not evaluating whether your photo is good. It is running through a checklist of measurable properties, and failing on the first one that does not match. There are seven of them, and once you know what they are, the problem stops being mysterious.
1. Pixel dimensions
The most basic check, and the easiest to satisfy once you know the numbers. A portal will state either exact dimensions (Indian bank exams want precisely 200 × 230 px) or a range (US visa photos must be between 600 × 600 and 1200 × 1200 px).
The trap is requirements written in millimetres. "35 × 45 mm" is not a pixel count, it becomes one only when you decide on a resolution. At 300 DPI it is 413 × 531 px. At 96 DPI it is 132 × 170 px, which will be rejected as too small. When a requirement gives millimetres without a DPI, assume 300; that is the near-universal convention behind published photo specs.
2. Aspect ratio
This one causes more confusion than any other, because people try to fix it by resizing. You cannot resize a 4:3 photo into a square. You can only crop it or squash it, and squashing produces a face that is subtly too wide, which fails both human review and automated face checks.
The common ratios are 1:1 (US, Japan, OCI), 7:9 (the 35 × 45 mm international standard used across Europe, the UK, India and Australia), and 3:4 (China). They are genuinely different shapes. A photo framed for one has to be recropped for another, not merely resized.
3. Head size within the frame
Here is the rule almost nobody checks, and it is responsible for a large share of rejections that feel inexplicable. Requirements specify how much of the image height your head should occupy, and the numbers vary far more than you would expect:
| Requirement | Head height | What it looks like |
|---|---|---|
| US passport and visa | 50–69% | Head and shoulders, fairly zoomed out |
| Schengen visa | 70–80% | Tight, the face fills most of the frame |
| India Passport Seva | 60–75% | Between the two |
A photo correctly framed for a US visa will be refused for a Schengen application, and vice versa, even though both use the same person, the same background and a perfectly acceptable file. This is why a photo "that worked last time" suddenly does not.
4. File size
Usually a ceiling: under 240 KB, under 500 KB, under 20 KB. Sometimes a floor as well, which catches almost everyone out, US online passport renewal refuses files under 54 KB, and China's COVA system wants 40–120 KB.
This is the failure mode where people make things worse by trying harder. Rejected? Compress more. Rejected again? Compress more. Each attempt takes them further from the requirement. If a form keeps refusing a file you have squeezed down to 8 KB, the problem is that it is too small. See the minimum file size problem for the full list.
5. File format
Almost every portal wants JPEG. Some accept PNG. Very few accept anything else, and essentially none accept HEIC.
HEIC deserves special mention because it is the single most common invisible cause of upload failure. iPhones have saved photos in HEIC by default for years. On the phone it looks exactly like a photo, it opens, it shares, it prints. Then a form refuses it with no explanation, because the validator has never heard of the format.
The permanent fix is on the phone: Settings → Camera → Formats → Most Compatible. New photos will be JPEG. For a photo you already have, emailing it to yourself usually converts it on the way out.
6. Background
"Plain white background" does not mean "a white wall". It means no visible texture, no gradient, and no shadow. A white wall with your shadow falling across one side is, as far as the reviewer is concerned, a two-tone background.
And the required colour is not universal. UK guidance asks for light grey or cream and specifically discourages pure white. Schengen guidance calls for light grey or light blue. A photo that sails through a US application can be refused in Europe on background colour alone.
Be sceptical of tools offering automatic background replacement. They leave halos around hair and ears that are obvious to a human reviewer, and a photo with an artificially replaced background is often grounds for rejection in its own right.
7. Composition and recency
The remaining rules are the ones a human checks:
- No glasses. The US, UK and many others now refuse photos with glasses entirely, regardless of glare. This changed relatively recently and catches people who last applied a decade ago.
- Neutral expression, mouth closed, both eyes open. A natural smile is accepted in some jurisdictions; a broad one is not.
- Face square to the camera. Not tilted, not turned.
- No head covering except for religious or medical reasons worn daily, and the face must be fully visible from chin to forehead.
- Taken within the last six months. Enforced more loosely, but a visibly old photo will be questioned.
Working out which rule you broke
Since the form will not tell you, check in order of likelihood:
- Format. Is it genuinely a JPEG? If it came off an iPhone, check rather than assume.
- File size. Look at the actual byte count in your file manager, and check whether the requirement has a minimum as well as a maximum.
- Dimensions and ratio. Are they exactly what was asked for? Is the image the right shape?
- Head size. Measure it. Chin to crown, as a percentage of total image height.
- Background. Look for shadows and gradients, not just colour.
The first four are measurable, and that means they can be handled automatically. Our requirements database stores the exact numbers for each portal, and the photo maker applies all of them in one step, including drawing guides for where your head should sit. That leaves you with only the human judgements to make.
One last thing
Take the source photo generously. Stand further back than feels necessary and include your whole head and shoulders with room to spare. Cropping in is easy; you cannot crop back what the camera never captured. Almost every unfixable photo problem comes down to someone standing too close.