About this tool
Two things get checked when you upload a photo or a signature to an application form: how many pixels across and down it is, and how many kilobytes the file weighs. This tool handles both at once. You give it the dimensions and a ceiling in KB, and it produces a JPEG that is exactly those dimensions and no larger than that ceiling.
The dropdown offers two starting points — 200 × 230 px at up to 50 KB for a photo, and 140 × 60 px at up to 20 KB for a signature. Choosing one fills the boxes underneath, and the boxes stay yours to edit. Treat them as a reasonable shape to begin with, not as anybody’s rule. We have not verified them against any exam, portal or department, and we deliberately do not name one. Open the instructions page of the site you are applying on, find the current numbers, and type those in instead. That page is the only place the real answer lives.
When the size limit and the dimensions are incompatible, the tool stops and tells you. It could reduce the image until the file fits, and plenty of sites do, but then you would download something that satisfies the KB check and fails the pixel check. Failing here is recoverable. Failing on the portal, or worse, at a verification desk months later, is not.
Everything runs on your device. The image is decoded, redrawn at the size you asked for, and re-encoded by your own browser. It is never sent to a server, so there is no upload to wait through on weak mobile data and no copy of your photograph left behind anywhere.
How to use this tool
- Choose your image. A JPG, PNG or WebP of your photo or signature, up to 50 MB.
- Pick an example starting point. “Photo: 200 × 230 px, up to 50 KB” or “Signature: 140 × 60 px, up to 20 KB” fill the boxes below for you. “Custom dimensions” leaves them alone.
- Replace the numbers with your own. The width, height and KB boxes stay editable after a preset fills them. Type in what your form asks for — the presets are only there so you are not starting from a blank field.
- Choose how it should fit. “Fit with white padding” keeps the whole image inside the box and pads the rest with white. “Fill and crop from the centre” fills the box and cuts off the overhang.
- Run it and save. The result shows the old and new file sizes, the exact output dimensions, and a preview before you download.
What this tool does not do
- The presets are examples. They are not verified requirements for any exam, board, university, department or portal, and the tool cannot tell you whether your upload will be accepted.
- It does not check face position, background colour, expression, or anything else about the content of the photo.
- It will not silently downscale to hit a KB limit. An impossible combination produces an error instead of a bad file.
- The output is JPEG only. Transparency is replaced with white.
- It lands at or below your KB limit, not on an exact byte count.
Common questions
Are these presets the official requirements for my exam or application?
No. They are editable examples and nothing more. No exam, board, university or department has confirmed these numbers to us, and we have not verified them against any portal. Requirements differ between portals and change between cycles. Read the instructions on the site you are actually applying to and type those numbers in.
Why not just list the real sizes for each form?
Because a list like that goes stale silently. A number that was correct last year and is quietly wrong now is more dangerous than no number at all, since you would have no reason to double-check it. Two generic starting points and a clear reminder to verify is the honest version.
It says the size limit cannot be met at these dimensions.
At the exact pixel size you asked for, even the lowest JPEG quality is still over your KB limit. The tool refuses rather than shrinking the picture behind your back — a file that is under the size limit but the wrong dimensions passes here and fails there. Raise the KB limit, or reduce the width and height, depending on what your form permits.
Does the tool ever change the pixel dimensions I entered?
Never. The output measures exactly what is in the width and height boxes. Only image quality is traded away to reach the file size.
Which fit should I choose for a passport-style photo?
“Fill and crop from the centre” if the photo is already framed roughly right, because it fills the frame without white bars. If the crop cuts off your head or chin, crop the photo yourself first with the image cropper and then come back here.
What format do I get back?
JPEG, always. That is how the file size gets controlled. A transparent PNG background is flattened to white.