NEET UG Photo and Signature Size

How to use this tool

1. Choose your image, drag it onto the box, or paste it from the clipboard. JPG, PNG, WebP and HEIC all go in; JPEG comes out.
2. There is nothing to set. This page is already fixed at between 10.0 KB and 200.0 KB, JPEG.
3. It scales the image down first — on our reference file, to 1600 × 2133 px — then searches the encoder quality. That run took 7 encodes.
4. Check the verdict before downloading. Because this form has a floor as well as a ceiling, the panel tells you whether the file landed inside 10.0 KB–200.0 KB — not merely under the top.

NEET is unusually generous on the photo at up to 200 KB but unusually tight on the signature at 3–30 KB. Some cycles also require the candidate name and photograph date printed beneath the image — check the current bulletin.

NEET UG Photo and Signature Size — the specification

NEET UG Photo and Signature Size: why uploads get rejected

A file can be the right size and still bounce — and here the size itself has two edges, since anything under 10 KB is refused just as firmly as anything over 200 KB. These are the failures that actually come up:

• The upload is a PNG. The NEET UG portal reads the file header, not the extension, so renaming photo.png to photo.jpg changes nothing — it is refused before the 200 KB limit is even considered. Re-encode it as real JPEG.
• The photograph came in under 10 KB. NEET UG publishes a range, 10–200 KB, and the floor is enforced as strictly as the ceiling. Candidates who compress repeatedly to "be safe" usually fail this way.
• The signature does not meet 3–30 KB, JPEG. It is a separate upload from the photograph with its own limit, and it is the one most often overlooked.
• The signature was photographed rather than scanned, so white paper came out grey and the 30 KB limit forced the quality down further. Sign in black or dark blue on plain white paper, shoot in daylight with no shadow across the page, and crop tightly to the strokes before resizing — a signature floating in half a sheet of paper ends up a few pixels tall once it is fitted to the box.

How it works

Hitting a size limit exactly is a search problem, not a setting. There is no quality value that means “200.0 KB” — how many bytes a given quality produces depends entirely on the picture. So this tool encodes, measures the real file, and adjusts.

It starts by capping the pixel count, because quality alone cannot rescue an image that is simply too large. On the reference file measured below that meant going from 3024 × 4032 to 1600 × 2133 before the first encode. That ordering is what keeps the search cheap: the six or seven encodes that follow all work on the smaller image.

It then binary-searches the quality parameter: encode, measure, halve the remaining range, repeat. The run below took 7 encodes to land at 197.6 KB. A tool that picks one fixed quality instead either overshoots the limit or comes in far under it and throws away detail you did not need to lose.

Every one of those encodes ran on your own device through the browser’s canvas API — including the intermediate attempts the search threw away. None of them was uploaded.

A measured run of this exact preset

Not an estimate: this page’s own code, run against a 12.2 MP photograph and an A4 scan at 200 dpi, with every encode recorded. The files and the method are published here.

Step by step

Before touching quality at all, the tool worked out how many pixels 200.0 KB can realistically describe, and scaled the image from 3024 × 4032 down to 1600 × 2133 — 72% fewer pixels. Doing this first is what keeps the run quick: every attempt after it encodes the smaller image rather than the original.

The first probe at quality 0.96 came out at 1.05 MB, about 5.4× the 200.0 KB limit, so the search began.

It then narrowed the quality setting 6 times — quality 0.51 gave 164.4 KB, quality 0.73 gave 286.1 KB, quality 0.62 gave 206.8 KB, quality 0.57 gave 187.3 KB, and so on — settling on quality 0.59.

Final file: 197.6 KB, using 98.8% of the allowance, with 2.4 KB to spare.

Who needs NEET UG Photo and Signature Size

Candidates filling the National Eligibility cum Entrance Test form, usually close to the deadline when the nta.ac.in portal is slowest. Having the photograph and signature ready in the right format and inside 10–200 KB removes the most common reason a submission fails at the final step.

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Background reading: Photo and Signature Sizes for Every Major Indian Exam