Compress image to 20 KB
Drop a photo and get a JPG under 20 KB, ready for signature images and small profile pictures. Nothing is uploaded.
More options
When you need a file under 20 KB
Many online exam and job portals ask for a scanned signature under 20 KB. At this size the image is shrunk until it fits, so keep the signature large and dark on white paper before scanning.
How the size is reached
The converter tries your chosen quality first. If the file is too big, it searches for the highest quality that still fits. Only if even a low quality is too large does it reduce the width and height, step by step, until the file fits.
To be safe, “20 KB” here means 20,000 bytes, the stricter of the two ways sites count kilobytes, so the file passes either check.
Questions
Are my photos uploaded anywhere?
No. The conversion runs inside your browser on your own device. Your files are never sent to a server, so it also works for private photos and documents.
Why did the dimensions change?
A large photo cannot fit in 20 KB at full resolution without looking blocky. Shrinking the width and height a little keeps it much clearer than crushing the quality.
Can I keep it as PNG?
Yes, choose PNG under More options. PNG cannot lower its quality, so only the dimensions are reduced; JPG almost always looks better at small sizes.