White, Grey or Black Bars on a Passport Photo — and Cropping Errors
A thin white, grey or black bar along the edge of a digital passport photo is easy to miss on a phone screen — and as of 8 December 2025 the UK no longer accepts one, even on a child's application. The bar appears on digital photos only, at the outside edge of the image, and is usually a cropping artefact. Here is what triggers it and how to crop it out. Verified against the UK HMPO photo standards, September 2026.
The 15-second answer
- A white, grey or black bar on the edge is a rejection reason — it shows on digital photos only, at the outside edge (top, side or bottom).
- The child exemption ended on 8 December 2025. Before that date a white bar across the bottom of a child's photo could be accepted if it did not cover facial features; from 8 December 2025 it can no longer be accepted.
- If the automatic check raises it, the photo must be replaced — the examiner must reject it and ask for a new one.
- The cause is nearly always cropping or scanning — a frame captured slightly off the subject, a scanner edge, or a resize that pads the image.
What the bar looks like — and why it appears
The UK standard describes a white, grey or black bar showing on a customer's photo, visible on digital photos only, on the outside edge — at the top, the side or the bottom of the image. In practice it comes from one of a few places:
- A crop that caught the edge of the frame — the subject was framed slightly off, so part of the background edge or a border is inside the crop.
- A scanned print — the scanner platen edge, or the white margin of the paper, lands inside the image.
- A resize that padded the canvas — forcing an image to a target size without matching its aspect ratio adds a strip at one side.
- A screenshot or export with a border — some tools add a hairline frame that survives into the uploaded file.
The 8 December 2025 change
The rule tightened recently, which is why the bar is now surfacing as a fresh rejection reason. Before 8 December 2025 a photo with a white bar showing across the bottom could be accepted on a child's application, provided the bar did not cover the child's facial features. From 8 December 2025 those photos can no longer be accepted. If you have an older child photo you were told was fine, it is worth re-checking.
What happens at the check
Where the digital automatic checking has raised a photo-standards task, the examiner must reject the photo and ask the customer to provide a new one — there is no discretionary pass for the bar. That makes it a crop-and-resubmit problem rather than a judgement call.
Fix it in three minutes
- ☐ Inspect the actual edges at full size. Zoom to each border on a large screen — phone thumbnails hide a one-pixel strip.
- ☐ Re-crop inside the frame. Bring the crop in so nothing but the subject and background remains; use a proportional crop so the aspect ratio stays correct.
- ☐ Resize without padding. Export to the target pixel size by scaling, not by adding canvas or margins.
- ☐ Re-scan with margin control. If the source is a print, rescan so the paper edge is outside the crop.
- ☐ Check the file you will upload — run it through the checker before you submit, not after a rejection.
60-second edge check
- ☐ No white, grey or black bar along the top edge
- ☐ No bar along either side or across the bottom
- ☐ Crop contains only the subject and background
- ☐ Aspect ratio and pixel size match the rule, with no padding
- ☐ If it is a scan, the paper margin is outside the frame
- ☐ The exported file — not the on-screen preview — has been checked
Frequently asked questions
Why is there a white bar on my passport photo?
It is almost always a cropping or scanning artefact — the crop caught the edge of the frame, a scanner platen or paper margin landed inside the image, or a resize padded the canvas. The UK standard describes these bars as showing on digital photos only, on the outside edge.
Will a white bar get my photo rejected?
Yes. The UK standard says the examiner must reject the photo and ask for a new one where the automatic check has raised a bar.
Did the child exception change?
It did. Before 8 December 2025 a white bar across the bottom of a child's photo could be accepted if it did not cover facial features; from 8 December 2025 these photos can no longer be accepted.
Does a black or grey bar count too?
Yes — the standard covers a white, grey or black bar, and the bar is visible at the outside edge, whether top, side or bottom.
How do I remove the bar?
Re-crop inside the frame so only the subject and background remain, and resize by scaling rather than padding. If the source is a print, rescan with the paper edge outside the crop.
Can I just leave it if it is only one pixel?
Do not rely on that. The bar is judged on the exported file, and the automatic check is not a judgement call — re-crop and re-check.
Bars sit alongside the other digital-file rules — the parameters are on the digital file requirements page, and the recovery path is in rejected next steps. Crop to the correct proportion with the image cropper, resize without padding with the image resizer, and check the file with the passport photo checker. The full list is in the top rejection reasons.