📦 Compress Image to KB Online Free — Exam Photo & Signature Resizer
Drop images here, tap to browse, or paste from clipboard
JPG, PNG, WebP · up to 20 files · max 25 MB each
Drop files in the left panel.
How to Compress an Image to KB Online
- Add your image — drop, tap to browse, or paste. JPG, PNG or WebP, up to 20 files, all on your device.
- Pick a size — tap a preset (10/20/50/100/200 KB) or type an exact Target KB range, or choose your exam preset to auto-fill the correct size.
- Resize & crop (optional) — set exact width×height in pixels or cm, and crop to passport, Aadhaar or square ratio.
- Add name & date (optional) — stamp candidate name and photo date, as UPSC and some NTA forms require.
- Compress & download — the tool hits your target and you download the JPG/PNG/WebP or a ZIP. Nothing is uploaded.
Common Exam Photo & Signature Sizes
| Document | Size (KB) | Dimensions |
|---|---|---|
| Passport photo (SSC, IBPS, RRB) | 20–50 KB | 4.5 × 3.5 cm |
| Signature | 10–20 KB | 3.5 × 1.5 cm |
| UPSC photo (name & date) | up to 300 KB | 350 × 350 px |
| NEET / JEE photo | 50–100 KB | 4.5 × 3.5 cm |
| Document / marksheet scan | up to 200 KB | as required |
⚠️ Always confirm the exact size and dimensions from your official exam notification — limits change by year.
Standard exam photo and signature sizes in cm and KB.
How a large photo is compressed to the exact KB you need, staying clear.
Why use ExamFo's image compressor?
ExamFo lets you compress an image to an exact KB size — 20KB, 50KB, 100KB, 200KB or any custom target — directly in your browser. Because processing is 100% client-side, your photo, signature or ID scan is never uploaded to any server, which matters for identity documents. It doubles as a photo resizer in KB, cm and pixels, a signature resizer, a JPEG and PNG compressor, and even lets you increase image size in KB when a form sets a minimum. There is no watermark and no signup, and it works on Android and iOS.
It doubles as an image compressor to 20kb, 50kb, 100kb, 200kb and 500kb, a photo compressor in kb, an online image compressor, and a photo resizer in kb, cm and pixels.
Frequently Asked Questions
How do I compress an image to an exact KB size?
Add your image, tap a preset or type the target KB range, then click Compress. The tool finds the quality that lands your file at or just under the target and shows the live result size.
Is my photo uploaded to a server?
No. Everything runs inside your browser using HTML canvas. No file ever leaves your device, so it is safe for photos, signatures and ID documents.
Can I resize the photo to exact cm or pixels too?
Yes. Enable "Resize to max", set the width and height in pixels, and tick "Exact" to crop to that exact size. Exam presets fill common passport and signature dimensions for you.
Does it add a watermark?
No. Your compressed image downloads completely clean, with no watermark and no charge.
Can I add name and date on the photo?
Yes. Tick "Stamp Name & Date", type the candidate name and photo date, and the tool prints them cleanly on the image as UPSC and some NTA forms require.
How to compress image to 30kb or 500kb?
Type any target such as 30 or 500 in the Target KB box and compress — the tool hits custom sizes, not just presets.
Is this an online image compressor without quality loss?
It keeps the highest quality that still meets your KB target, so quality loss is minimal for most photos and signatures.