35 × 45mm passport photo crop
Crops your photo to 35 × 45mm and saves a 413 × 531px JPG under 500KB. You place two guides — the crown of the head and the chin — and the crop follows them. The photo is never uploaded; everything runs in this browser tab.
Passport photo crop editor
What gets saved
Checked while you edit
- Choose a photo and this list updates every time you move a guide.
You have to check these yourself
Where the crown (under the hair) and the chin really are, a plain white background, a level head, a neutral expression, nothing across the eyes, and how recently the photo was taken are not judged here. Composited backgrounds, retouched faces and AI-generated images are not accepted by any passport office.
These numbers come from the South Korean passport rules: photo specification and online photo file guidance (both in Korean, checked 2026-09-05). If you are applying somewhere else, read the country table below before you use this crop.
Choose a photo and we look for a face to place the guides.
Exactly what comes out of this tool
One size, one file format, no options. Whatever you put in, the download is the same shape, so it is worth knowing the numbers before you decide this tool is the right one.
| What | Value |
|---|---|
| Print size | 35 × 45mm (about 1.38 × 1.77in) |
| Pixels | 413 × 531, which is 35 × 45mm at 300dpi |
| Head height in the frame | 34mm, crown to chin |
| File | JPG, 500,000 bytes or less |
| Opens | JPG, PNG, WebP up to 10MB, 25 megapixels and 6,000px on the long edge |
The 500KB ceiling is met by stepping JPEG quality down from 92% until the file fits, so a busy background costs you some quality. The dpi figure is a print instruction, not something stored in the file — this tool does not write dpi metadata, so when you print, set the paper size to 35 × 45mm yourself rather than trusting the printer to work it out.
35 × 45mm is not the size everywhere
If your passport office wants a square photo, this crop is the wrong shape and no amount of re-cropping fixes it. 35 × 45mm is the most widely used passport photo size, but two of the largest issuers do not use it.
| Frame size | Used for passports in |
|---|---|
| 35 × 45mm — what this tool makes | South Korea, Japan, the United Kingdom, Ireland, the Schengen countries, Australia, New Zealand |
| 51 × 51mm (2 × 2in), square | United States — passports and visas |
| 50 × 70mm | Canada |
| 33 × 48mm | China |
Countries not in that table are left out on purpose rather than guessed at. Requirements also change, and some offices add their own pixel and file-size limits on top of the print size for online applications. Check the page your own issuing office publishes before you submit anything.
Re-cropping a 35 × 45mm photo into a square does not produce a US photo either. The head would end up the wrong size for the frame, which is the thing the square rules measure most closely.
Head height is a separate rule from frame size
Two countries can agree on 35 × 45mm and still disagree on how much of it your head fills. That is the part people miss, because the frame size is the number that gets quoted.
South Korea asks for 32 to 36mm from crown to chin, and this tool renders 34mm — the middle of that range. The United Kingdom asks for 29 to 34mm in the same 35 × 45mm frame, so what comes out of here lands exactly on the UK upper limit. The United States measures head height against a square frame instead, so nothing from this crop carries over.
There is no setting for head height here. The crop is always built to 34mm, because that is what the Korean guidance recommends and adding a slider for it would invite people to guess. If your office wants a different range, crop somewhere that lets you set it, or have the photo taken at a shop that works to your country's spec.
Sources: South Korean Ministry of Foreign Affairs passport photo guidance (linked above) and GOV.UK photos for passports. US requirements are published by the State Department on its travel site.
Where the two guides go
The tool hands you three lines and derives everything else from them: the crown guide, the chin guide, and a vertical centre line. Move any of them and the preview on the right and the checklist both update.
The crown is not the top of your hair. It is the top of the skull with the hair discounted, which on curly or volumised hair sits a long way below what you see. Face detection cannot find that — it works on the visible face — so it places a starting guess and leaves the line to you. The chin guide goes on the point of the chin. For the centre line, the midpoint between the eyes is a steadier reference than the tip of the nose if the head is tilted at all.
You can drag the lines directly on the photo, or focus one of the sliders and use the arrow keys. Each slider splits the photo into 1,000 steps of half a step each, so one key press moves about 1.5px on a photo 3,000px tall. Dragging gets you close; the arrow keys are for the last bit.
The head height row in the checklist always reads 34mm, and that is not a bug. The crop is scaled so the distance between your two guides becomes 34mm, so the row is telling you what the output will be, not measuring your photo. Whether the saved head height is really correct is the same question as whether you put the guides in the right place, which is why that row says to check it yourself.
A photo where the face fills the frame cannot be cropped to spec
The crop box is 1.32 times your head height tall and 1.03 times wide, and the head sits vertically centred in it. That means the photo has to carry about 16% of the head height as spare image above the crown and below the chin. If crown to chin measures 800px in your original, you need roughly 129px of photo beyond each of those lines.
When that room is missing you get “There is no crop, or it runs past the edge of the photo” and the Save button stays locked. Nothing is filled in with white, deliberately: a background you painted in is a composited background, and that is refused on its own terms. A photo taken close up has to be retaken from further back.
Resolution gets flagged too. The saved file is 531px tall and the head occupies about 401px of it, so an original whose crown-to-chin distance is shorter than that has to be enlarged, and the Enlargement row changes to say so. On a photo 3,000px tall the head only needs to fill about 14% of the height to clear it, so an ordinary phone photo of your head and shoulders usually has plenty in hand.
The multipliers and pixel counts in this section are not from any passport office. They are what falls out of a 34mm head inside 413 × 531px.
Where people get caught out
Detection puts the guides in the right place
It puts them somewhere plausible. The starting positions come from the detected face box — the chin from its lower edge, the crown from a fixed offset above its top. Those were measured against a couple of sample portraits, not against your hair. Profiles and tilted heads are often not detected at all, in which case the guides land in the middle of the photo and every line is yours to place.
A green checklist means the photo will be accepted
The checklist only covers geometry and file size. Four of its six rows are about the crop and the JPG. Two are marked as yours to verify. Nothing in it looks at the content of the photo, so a correctly cropped photo with a shadow behind the head passes here and gets refused at the counter.
Cropping is the last step
Retouching after the crop undoes it. Filters, skin smoothing and AI-generated or composited images are refused, and that includes a background swapped in afterwards. This tool crops and rescales and touches nothing else about the face for that reason. If you have already used background removal on the photo, it will not be accepted as a passport photo.
What this tool does not look at, in full: whether the background is white, plain and free of borders; shadows or reflections on the face or behind it; skin tone; glare on glasses, frames covering the eyes, tinted or coloured lenses; a closed mouth and no visible teeth; a neutral expression with face and shoulders square to the camera; hair across the eyes, eyebrows or the outline of the face; hats and headbands; other people or objects in the frame; and how recently the photo was taken, which many offices limit to the last six months. A person has to look at all of that.
If a form is rejecting your photo purely on file size rather than shape, image compression is the faster fix — this tool changes the crop as well.