The CAT (IIM) signature must be 1000 × 350 pixels (width × height), with a file size between 30 KB and 80 KB, in JPG/JPEG format. Upload your signature in the tool below and it is resized and compressed to exactly this size in one click.
⚡ CAT Signature Resizer — 1000×350px, 30–80 KB● 100% private · in your browser
CAT Signature Requirements
| Width | 1000 px |
|---|---|
| Height | 350 px |
| File size | 30 – 80 KB |
| Format | JPG / JPEG |
| Aspect ratio | 20:7 |
| Print size @200 DPI | 12.70 × 4.45 cm |
CAT Photo Requirements
| Width | 1200 px |
|---|---|
| Height | 1200 px |
| File size | 30 – 80 KB |
| Format | JPG / JPEG |
CAT Signature Guidelines — Do's & Don'ts
✅ Do
- Sign on plain white paper with a black or blue ink pen
- Use your usual full signature — the same one you will sign at the exam centre
- Crop tightly around the signature with a little white margin
- Scan or photograph in good light so the strokes are sharp and dark
❌ Avoid
- Signature in CAPITAL letters (rejected by most bank and SSC exams)
- Pencil, sketch pen or a digital signature drawn on the phone
- Lined or coloured paper, shadows or fingers in the frame
- Signing on the photo or a signature that is too faint to read
How to Resize the CAT Signature (4 Steps)
- Upload your signature in the tool above (JPG, PNG, HEIC or WEBP, from gallery or camera).
- Crop — the box is locked to the 20:7 ratio required by CAT (IIM). Zoom, rotate or remove the background if needed.
- Process — the signature is resized to 1000×350px and compressed into 30–80 KB automatically.
- Download the JPG and upload it on the CAT (IIM) application form.
Common reasons the signature upload is rejected
- File is larger than 80 KB or smaller than 30 KB.
- Dimensions are not 1000×350px, or the image is stretched.
- Wrong format — PNG, HEIC or PDF instead of JPG.
- Faint, blurred or cut-off signature, or signature in capital letters.
📖 How to scan your signature for online forms · 12 reasons uploads get rejected
CAT Signature Size — FAQs
What is the CAT signature size in 2026-2027?
The CAT (IIM) signature must be 1000×350 pixels (width × height) in JPG format, with a file size between 30 KB and 80 KB.
What is the CAT signature size in KB?
Between 30 KB and 80 KB. Files below 30 KB or above 80 KB are usually rejected by the application portal.
What is the CAT signature size for 2027?
Use 1000×350 pixels, 30–80 KB, JPG — the size in recent CAT (IIM) notifications. It rarely changes between years; if the 2027 notification changes it we update this page, and you can edit width, height and KB in the tool.
How do I reduce my CAT signature to under 80 KB?
Upload it in the free tool on this page. It resizes the image to 1000×350px and automatically adjusts JPG quality until the file is inside the 30–80 KB range. No app or sign-up is needed.
My signature is smaller than 30 KB. How do I increase the size?
The tool raises the JPG quality to bring a small file up into the 30–80 KB range without changing the 1000×350px dimensions. Start from the original, un-compressed signature for the best result.
How should I sign for the CAT signature upload?
Sign on white paper with a black or blue ink pen, photograph or scan it in good light, then crop tightly around the signature in the tool. Avoid capital letters and faint pens.
Can I resize the CAT signature on my mobile phone?
Yes. The tool works in Chrome or Safari on Android and iPhone. Pick the signature from your gallery or camera, crop it, and download the resized JPG straight to your phone.
Is it safe to resize my signature on ILoveExams?
Yes. Your image is processed entirely inside your browser and is never uploaded to any server, so nobody else can see it.
What is the CAT photo size?
The CAT (IIM) photo must be 1200×1200 pixels, 30–80 KB, JPG. Resize your CAT photo here.
More Entrance Exams (JEE, NEET, CAT)
- JEE Main Signature Size
- NEET Signature Size
- GATE Signature Size
- CUET UG Signature Size
- CLAT Signature Size
- NTA CMAT Signature Size
- XAT Signature Size
All Entrance Exams (JEE, NEET, CAT) photo & signature sizes → · Full exam size chart 2026-2027 → · Resize any image to 1000×350px →
Specifications on this page are compiled from recent official CAT (IIM) notifications and checked regularly (last review: September 2026). Always cross-check with the latest official notification before submitting — if the size has changed, you can edit width, height and KB directly in the tool.