About this tool
Some forms ask for a signature or small photo of only 20 KB. That is a very small file, so the picture also needs fewer pixels. This tool lowers the quality step by step until your image fits under 20 KB.
How to use it
- Choose your signature or photo.
- Set a small width, for example 300 pixels.
- Keep the target at 20 KB and press Resize & Compress.
- Download the file and upload it.
Signatures and very small images
A 20 KB limit usually applies to a signature or a small thumbnail photo. Write your signature with a dark pen on plain white paper, take the photo in good light and crop away extra paper before you compress.
Keep the width small, around 200 to 300 pixels for a signature. Black on white compresses extremely well, so you can keep the writing sharp even at this size.
Common questions
Why do I need small dimensions for 20 KB?
A big picture cannot fit in 20 KB without looking blurry. Reducing the width and height first gives a sharper result.
Can I compress a scanned signature?
Yes. Photograph or scan it on plain white paper, then use this tool to shrink it.
The tool says it could not reach the target.
Lower the width and height and press the button again.
Is anything stored on a server?
No. Everything runs in your browser.