resize image to 35x45 mm for a passport style frame
Use this page to resize image to 35x45 mm when a form wants a passport-style frame. 35 by 45 millimetres at 300 DPI is 413 by 531 pixels. The DPI chunk does not add pixels.
Preset: Resize image to 35x45 mm
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Steps to resize image to 35x45 mm
- Add the picture. It stays in this tab while you resize image to 35x45 mm.
- Confirm the frame is 413 by 531 pixels. Cover is selected, lock aspect is on, and do not enlarge is off.
- Run the resize. Cover center-crops to that exact frame, and the pixels are resampled with Lanczos.
- Download the picture. If the subject sits in a corner, the crop may have cut it, so look before you submit the file.
How this target is applied
35 by 45 millimetres at 300 DPI is 413 by 531 pixels, a common passport-style frame. The width and height are set to those pixels, and DPI is 300 so a printer can treat the file as that physical size. The DPI chunk does not add pixels.
Cover center-crops to the exact 413 by 531 frame. Do not enlarge is turned off, so a smaller original can grow, and the pixels are resampled with Lanczos. A wide snapshot loses the sides. Keep the head inside the centre of the crop.
Why 35 by 45 millimetres
Many identity forms ask for a portrait around 35 by 45 millimetres. At 300 DPI that physical size is 413 by 531 pixels, which is the frame this page opens. It is a common passport-style frame, meaning the proportions people expect for that kind of photo, not a guarantee that a particular office will accept your file.
The millimetre size is the print. The pixels are what the file actually contains.
What the crop does to a portrait
Cover center-crops to 413 by 531. A landscape photo loses a great deal of the sides. A portrait that is already close to this shape keeps more of the head and shoulders. Put the face in the centre. The pixels are resampled with Lanczos.
The DPI chunk does not add pixels. It will not rescue a tiny avatar.
Limits, formats and output
| Accepted input | JPEG, PNG, WEBP, GIF, BMP, HEIC, AVIF |
|---|---|
| Files per batch | 1–100 |
| Soft size warning | 50 MB each |
| Hard stop | 500 MB total in memory |
| Output | The chosen image format, or a ZIP for a batch |
| Account | None. The tool runs in this tab. |
Your file never leaves your device
Your picture is processed only in this browser and is never uploaded. The work runs in a Web Worker in this tab, using WebAssembly for the heavy parts, and the result comes back as a local blob. This site does not upload the file, store it, or log its name.
To verify: load the page, turn on airplane mode, and drop the file again. It still finishes. Or open DevTools, choose Network, and watch the run: there is no upload. The architecture is described on How it works.
Frequently asked questions
How do 35 by 45 millimetres become 413 by 531?
35 by 45 millimetres at 300 DPI is 413 by 531 pixels. The millimetres are converted to inches and multiplied by 300. This page sets the width to 413 and the height to 531 so you do not have to do that arithmetic.
Is this an official identity photo?
It is a common passport-style frame, 35 by 45 millimetres at 300 DPI. Offices also care about background, expression, glasses, and how recently the photo was taken. This tool only sets the pixel frame, the crop, and the density note. You still have to meet the written rules of the form you are filing.
Does the DPI chunk add pixels?
No. The DPI chunk does not add pixels. 413 by 531 is the whole grid. The 300 DPI note tells a printer to map that grid onto about 35 by 45 millimetres. A smaller picture with the same note prints softer or smaller.
Will a wide photo become a portrait?
Cover center-crops the wide photo down to 413 by 531, keeping the centre and cutting the sides. It does not squeeze the picture, so faces are not stretched. Do not enlarge is off, and the pixels are resampled with Lanczos. If the head is in a corner, move the crop by using a tighter source first.
What if my form uses inches instead?
Then this millimetre frame is the wrong preset. A 2 inch square at 300 DPI is 600 by 600 pixels, which is a different page. Read the form. 35 by 45 millimetres is taller than it is wide. Sending a square when they asked for this portrait frame is a common reason a photo is rejected.
Last updated 2026-09-26. By Tam.