Compress Image to 20KB – Reduce Photo Size to 20 KB Free

Make any photo 20 KB or smaller in one click.

Choose images

JPG, PNG, WebP — we make each one 20 KB or smaller

Compress Image to 20KB reduces your photo to 20 KB or less while keeping it as clear as possible. It is ideal for signatures and small ID photos.

How to compress an image to 20KB

  1. Click "Choose images" or drag and drop your photo into the box.
  2. The target is already set to 20 KB. Add a width and height if your form asks for exact pixels.
  3. Click "Compress".
  4. Download your 20 KB image and upload it to your form.

Why use ZentaPDF Compress Image to 20KB?

Easy to useSimple steps, clear buttons — done in a few clicks.
Free, no sign-upNo account, no email, no watermark and no daily limits.
FastNo waiting — results are ready in seconds.
Works everywhereUse it on Windows, Mac, Linux, Android or iPhone in any modern browser.
Keeps qualitySmart settings keep your images sharp.
Large filesHandle big files and many pages — limited only by your device’s memory.

Frequently asked questions

Will the photo still look good?

Yes, in most cases. The tool keeps the highest quality that fits in 20 KB and only makes the picture smaller in pixels if it really has to.

What if the form asks for an exact size in pixels?

Type the width and height (for example 200 × 230 px for a passport-style photo). The photo is cropped from the centre to that exact size and then compressed to the target KB. Always check the size rules in the official notification of the form you are filling.

Why is the output a JPG?

JPG gives the smallest files for photos and signatures and is accepted by almost every online application form. If your form needs PNG, use our PNG converter afterwards.

Is it really free? Do you add a watermark?

Yes, it is completely free with no sign-up, no watermark and no daily limits. The site is supported by a few non-intrusive ads.

Guides

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