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Compress Image to 20KB

Many exam forms want a signature under 20KB. Drop your image and get a file that fits.

Files are processed on your device. Nothing is uploaded.

Quick answer

How do I compress an image to 20KB?

To compress an image to 20KB, add the photo or signature and tap Compress. The 20KB target is already selected. Fileora finds the best JPG quality that fits under 20KB and reduces the dimensions only if needed. It runs in your browser, so your signature is never uploaded.

How it works

Compress Image to 20KB in 3 steps

Add photos

Drop one or many images. JPG, PNG, WebP and HEIC all work.

Pick a target

Choose a size like 100KB, or use the quality slider.

Download

Get each photo or a ZIP of all of them. We show how much space you saved.

How do I get a signature under 20KB without it looking blurry?

Sign on plain white paper with a dark pen, photograph it in daylight, and crop tightly around the signature before compressing. A tight crop leaves fewer pixels, so each one keeps more detail at 20KB.

Why is 20KB such a common limit?

Many recruitment and exam portals keep upload limits small so that lakhs of applications load quickly. Signatures are often limited to 10KB to 20KB. Always check your form's official notification for the exact range.

Updated 06 October 2026 · Made by the Fileora team

Questions people ask

Can I compress a photo to 10KB or 15KB?

Yes. Type 10 or 15 in the Custom size box. For very small sizes, crop the image first for the best result.

Will my photo become exactly 20KB?

It will be just under 20KB, which portals accept because they check for a maximum size.

Is my signature uploaded anywhere?

No. The compression runs on your device and nothing is sent to a server.

How do I compress a photo to exactly 100KB?

Pick the 100KB target. The tool finds the best quality that fits under 100KB and only shrinks the dimensions if it has to.

Will compressing reduce quality?

Slightly, but at 70–85% quality the difference is hard to see while the file gets much smaller.

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