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Compress Image to 20 KB
Reduce JPG, PNG and WebP images to under 20 KB.
Add the images you want to make smaller than 20 KB.
Images stay on your device. Dimensions are kept and metadata is removed.
Up to 20 images at a time.
Compress Image to 20 KB online, free and private
Many forms and websites refuse images above 20 KB, especially for signatures and photos on online exam and recruitment forms. This tool compresses your photo to under 20 KB automatically: it keeps the highest quality that fits and only reduces the dimensions when it really has to. The result is a JPG accepted everywhere.
How to use Compress Image to 20 KB
- 1
Add your JPG, PNG or WebP image.
- 2
Keep 20 KB, or type another maximum size.
- 3
Download your image, now under 20 KB.
Why use PDFDog
Private by design
Your images are compressed directly in your browser: they are never uploaded to a server.
Free, no sign-up
No account and no watermark, as many images as you like.
Made for size limits
Built for forms and portals with a strict limit: the quality is tuned automatically to stay under 20 KB.
Frequently asked questions
How do I compress an image to 20 KB?
Add your image, keep 20 KB as the maximum size and click Compress image. PDFDog finds the best quality that fits and shows the new size before you download.
Will my image keep its dimensions?
Whenever possible, yes: the quality is lowered first. Only if the image is still above 20 KB are its dimensions reduced, just enough to fit.
Can I choose another size?
Yes. Type any size in the Maximum size in KB field, for example 30 KB or 150 KB.
Are my images uploaded?
No. Compression happens in your browser, so your photos never leave your device.