# Compress image to KB

> Compress images to an exact size in KB online for free: 10 KB, 20 KB, 50 KB, 100 KB or any limit. Perfect for exam and job form photos. No upload.

Tool: https://pdfnest.co.in/compress-image

Online application forms for exams, jobs, scholarships and government services often say things like "photo must be 20–50 KB" or "signature between 10 and 20 KB". Type those limits here, add your photo and get a JPG that fits — with the best quality the limit allows. Works with photos from your phone camera, WhatsApp images, screenshots and scans (JPG, PNG, WEBP, HEIC in Safari).

## Tips

- Copy the exact limits from your form. If it says "10 KB to 20 KB", put 10 in Minimum and 20 in Maximum.
- If the form also gives pixel dimensions (like 200 × 230 px), choose Pixels and type them — the size limit is still respected.
- Crop out extra background before compressing; less background means a sharper face or signature at small sizes.

## How to compress image

1. Click Select images and choose your photo (or several).
2. Type the minimum and maximum size in KB from your form.
3. Optionally set the width and height in pixels or cm.
4. Click Compress image and download the JPG.

## Features

- **Exact KB limits:** Set a maximum, a minimum, or both — the result always lands inside the range.
- **Best quality that fits:** We search for the highest JPEG quality under your limit instead of crushing the photo.
- **Pixels or centimetres:** Resize to exact dimensions too, with the DPI saved in the file.
- **Private by design:** Your photo is processed on your device and never uploaded.

## FAQ

### How do I reduce an image size to a specific KB?

Add your photo, type the maximum size in KB (for example 50), click Compress image and download. The result shows its exact size so you can check it before uploading.

### My form needs the photo between 20 KB and 50 KB. Can I do that?

Yes. Type 20 in Minimum and 50 in Maximum. If your photo is very small, we enlarge it or raise the file size so it reaches the minimum without changing how it looks.

### Can I compress a photo on my phone?

Yes. It works in Chrome, Safari and other browsers on Android and iPhone. The compressed photo is saved to your Downloads or Files app.

### Which format do I get?

JPG (JPEG), which nearly every online form accepts. PNG, WEBP and HEIC photos are converted to JPG automatically.

### Will the photo still be clear?

We keep the highest quality that still fits your limit. Very small limits (under 15 KB) work best for small images such as signatures or passport-size photos.