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Image resizer: pixels and KB
Set the width, the height and the file-size limit in one go. Tap a common size or type the one your form states, drag the crop box to the part of the photo that should stay, and download a JPG that is exactly that size and safely under the KB limit.
Resize settings
Photo · Choose what your form needs
Choose your examOnly exams checked against the official notice are listed.
Choose a sizeMatch the file size shown on your application form.
Need a different size?
Custom requirementsUse the numbers on your form. Leave unstated limits empty.
Format: JPG, which almost every form accepts.
Upload your photo
Add a file. We’ll resize and check it for you.
Add your photo
Drag and drop your file, or choose one below.
JPG, PNG or WebP · No signup needed
Add your photo to start. It stays on your device.
Prepared on your device. Nothing is uploaded to SizePrep or anyone else.
Only on your device. Your files are never sent to a server.
Why forms give pixels and KB together
A pixel size fixes how the image is shown or printed; a KB limit fixes what the server will store. The two pull against each other: more pixels means more bytes. Tools that handle one rule at a time make you guess at the other, and a file that is 200 by 230 pixels but 62 KB is rejected just as surely as one that is 48 KB but 640 by 480. This page resizes to the exact pixels first, then finds the highest JPG quality that keeps the bytes inside the limit, and measures the result under both ways of counting a KB.
Choosing what stays in the frame
A phone photo is 4:3 or 3:4; a form’s 200 by 230 box is nearly square. Something has to go. SizePrep never stretches a picture to fit, because a stretched face is a rejected face; instead it cuts the largest area with the right shape. By default that area sits in the middle. When the person is off-centre, or a signature sits at the edge of the paper, drag the box on the Before preview (or use the arrow keys and the Move buttons) and the result is re-made from the part you chose. The note under the result states exactly how many pixels were trimmed from each side.
Exactly this size, or at most this size
- Exactly this size is for rules written as “200 × 230 pixels” or “3.5 cm × 4.5 cm”. The output has precisely those pixels, cropped to shape.
- At most this size is for rules written as “maximum 600 × 600” or “not more than 350 pixels wide”. The proportions are kept and the image is shrunk until it fits the box; nothing is cropped. The result then checks the maximum as a rule.
- A single width or height is a maximum on that side: type only the number the form gives and the other side follows the photo’s own proportions.
When the two rules cannot both be met
A detailed image at a large exact size can be too many bytes even at the lowest quality SizePrep allows. The result then says Not ready yet and offers the largest size with the same proportions that does fit, measured with real encodes; one tap re-runs the job at that size. Use it only if the form allows a smaller image, otherwise pick a plainer photo (even background, no clutter). Unsure what your current file is? The image size checker reads its pixels, KB and format without changing it.