JEE Main Photo and Signature Resizer, Converter and Compressor

What JEE Main opens

JEE Main has been conducted by the National Testing Agency since 2019 and sits at the centre of Indian engineering admissions. Paper 1 covers B.E. and B.Tech admission at the NITs, IIITs and other centrally funded technical institutions, and it also acts as the eligibility test for JEE Advanced, through which the IITs admit. Paper 2A and 2B handle B.Arch and B.Planning. The test runs in two sessions each year, one in January and one in April, and question papers are offered in thirteen languages.

The photograph and signature look generous, at 3.5 by 4.5 and 3.5 by 1.5 centimetres respectively at either 96 or 200 DPI with weights from 50 KB up to 500 KB. The third item is the one that causes trouble: a category or relevant certificate scanned as a 720 by 1280 pixel image with a maximum and minimum that are both exactly 50 KB. That is the only fixed-point file size on the whole site, and it means the scan needs real compression rather than a trim, because the file cannot simply be shrunk below the limit and still pass. The NTA's own advisories about photograph mismatches with identity proof make the portrait worth getting right first.

The official JEE Main site is jeemain.nta.nic.in. Take the photograph and signature numbers from the notice published there rather than from a third-party summary, since that document is the one the portal was built against.

This page sets out the numbers JEE Main actually asks for. It is not a general guide to cropping or to the tool interface, because those instructions do not change from one exam to the next and they are written up separately.

What the JEE Main form asks you to upload

3 images go into this form. That is the detail most candidates miss, because the photograph and signature are the obvious ones and the remaining uploads are easy to overlook until the portal rejects the submission. They are:

• A photograph at 3.5 x 4.5 cm, no heavier than 500 KB and no lighter than 50 KB.
• A signature at 3.5 x 1.5 cm, no heavier than 500 KB and no lighter than 50 KB.
• A certificate scan at 720 x 1280 px, up to 50 KB.

The JEE Main numbers, and why they matter

JEE Main publishes its sizes in both units, which means the record is offering two ways to express the same kind of requirement. Pick the row that matches how your own advertisement is worded: centimetres when the notification states a physical frame, pixels when it states a resolution. They are alternatives published for different notifications, not a sequence to apply in turn.

Resolution appears more than once in the JEE Main record, at 200 and 96 DPI. That is not a contradiction: the physical frame is the same in both, and the choice is how densely the image is stored. Where an advertisement is silent, the 200 DPI row is the safer one, because a denser image still measures correctly at a lower resolution while the reverse is not true.

Worth knowing that JEE Main works in both directions. The photograph must be no larger than 500 KB and no smaller than 50 KB, and the signature no larger than 500 KB with 50 KB as its floor. Overshooting the ceiling is the usual mistake; undershooting the floor is the one that surprises people who compress hard.

There is a further upload on this form, covering a certificate. They sit alongside the photograph rather than replacing it, and each carries its own ceiling, so a file prepared for the portrait is the wrong starting point for them.

If the JEE Main application refuses your file

• If JEE Main refuses a file, start with the weight on the result card against the 500 KB, then look at the picture. At this ceiling, an uncropped phone photo straight off the camera will not fit, so crop before you compress rather than after.
• The signature is judged on its own 3.5 x 1.5 cm box and is not rescued by a correct photograph. If it is rejected, the usual cause is loose cropping: a signature scanned with a wide white margin carries more weight than the 500 KB allowance and fails even though the writing itself looks right.
• When two identical files are both refused, the file is usually not the variable. Re-check the notification against the table above, since a corrigendum between your two attempts is the usual explanation.

Official links from the original page

• examinationservices.nic.in/JEEMain22/Registration/Instruction.aspx
• jeemain.nta.nic.in/faq/

Frequently Asked Questions

Cropping to a face, choosing a compression level, and the reasons a correctly sized photograph still gets refused do not vary by exam, so those are covered in one place rather than repeated here.