When you need this preset
If you took your passport photo on an iPhone, it is almost certainly saved as HEIC — a format the gov.uk online passport service does not accept. This page preselects a JPG output and crops the image to 900×1200 pixels, the recommended digital size for the online service, so the format conversion and the exact 3:4 (35×45 mm) proportions are handled in one step.
You do not have to use 900×1200 exactly. The online service accepts a digital photo from 600×750 pixels upward, and the larger recommended size simply leaves headroom if gov.uk rescales your upload. Paper applications use a printed 35×45 mm photo instead, so this preset is aimed at the online “apply online” route.
What the official gov.uk rules say
Per gov.uk photo guidance, a digital passport photo must be at least 600 pixels wide and 750 pixels tall, be a file between 50 KB and 10 MB, and be taken against a plain, light-coloured background. Importantly, the UK asks for a light-grey or cream background — not pure white — with no shadows, taken within the last month, with a neutral expression and your head between roughly 29 and 34 mm in printed terms. The photo must be clear, in focus, and unaltered by software.
Those are things you control when you take the photo — the lighting, the background wall, your expression, and how much of your head fills the frame. This tool does not change or check any of them, so read the gov.uk checklist before you shoot.
What this tool does and does not do
This is a file-preparation tool. It converts your HEIC photo to JPG, crops it to fill 900×1200 pixels at the passport ratio, and — because every output is re-encoded from decoded pixels — removes private metadata such as GPS location, camera model, and the original timestamp. It does not check face position, head height, background colour, shadows, or any other compliance rule, and it does no AI enhancement, retouching, or background replacement.
heictoimg.com is independent and is not affiliated with or approved by HM Passport Office or gov.uk, and it does not guarantee that your passport application or photo will be accepted. The official gov.uk guidance is your source of truth. This is not legal or immigration advice.
Private, local conversion
Everything runs in your browser using WebAssembly, so your selected image files are not uploaded to heictoimg.com servers. There is no signup and no watermark, and you can process up to 50 files at once on desktop and up to 10 on phones and tablets — handy if you are preparing photos for several family members at once.