CAT

CAT Photo & Signature Resizer

Make your photo and signature ready for the CAT (IIM) application form.

or drop an image anywhere on this page · paste with Ctrl+V

Your image never leaves your device

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CAT photo and signature size

Document	Requirement	PhotoSizeKaro makes
Photo (30 × 45 mm)	JPG/JPEG, 30 × 45 mm, up to 80 KB (most guides)	240 × 360 px, 20–75 KB
Signature (80 × 35 mm)	JPG/JPEG, 80 × 35 mm, at least 150 ppi, up to 80 KB	480 × 210 px, 20–75 KB

Last checked November 2026 against recent notifications and exam guides. PhotoSizeKaro is not connected to CAT or any exam board. If your notification gives a different size, choose Custom size.

CAT photo and signature rules

Photo: recent (not more than 6 months old), light background, face clearly visible.
Signature: black ink on white paper, at least 150 pixels per inch. PhotoSizeKaro makes it 480 × 210 px, which is 80 × 35 mm at about 150 ppi.
Only JPG/JPEG works. PNG, PDF, BMP and TIFF files cause errors.

CAT registration usually runs from August to September. Guides disagree on the photo (some list 1200 × 1200 px or up to 1 MB), so check iimcat.ac.in when registration opens and use Custom size if needed.

Documents to keep ready for the CAT form

Get these ready before you open the form, so you can finish it in one go:

Photo (30 × 45 mm): 240 × 360 px, 20–75 KB JPG. Make it now ↑
Signature (80 × 35 mm): 480 × 210 px, 20–75 KB JPG. Make it now ↑
Email address and mobile number that you will keep using; results and admit cards are sent there.
Class 10 certificate for your date of birth, and the education details the notification asks for.
Category certificate (SC / ST / OBC / EWS) or PwBD certificate, if you claim one, in the format the notification gives. Need it as a small PDF? Use Compress PDF.
Photo ID details (Aadhaar, PAN, voter ID or similar) and fee payment by UPI, card or net banking.

Check your age on the cut-off date with the age eligibility calculator. Exact document lists differ by exam and post, so follow the notification.

How to use this tool

Pick the documentPhoto, signature, thumb or declaration. Or type your own size.

Select your imageA phone photo is fine. Use Zoom and Move to frame it.

Download and uploadWhen the box turns green, the file is ready for the form.

Frequently asked questions

What is the CAT photo size in pixels?

Most guides give 30 × 45 mm and up to 80 KB. PhotoSizeKaro makes it 240 × 360 px (30 × 45 mm at about 200 ppi) and keeps it under 80 KB.

Can I change my CAT photo after submitting?

CAT usually opens a short correction window after registration closes. Check iimcat.ac.in for the dates.