WIN-J TOOLS
Signature image maker
Draw a signature with a mouse, pen or finger and save a transparent PNG. Adjust ink color and width, undo strokes and crop extra whitespace.
Draw below with a mouse, pen or finger. Choose padding crop and background before exporting.
Files and content entered into this tool are processed in your browser and are not sent to the server.
How to use
- Choose ink color and width, then draw in the signature area. Changes apply to new strokes.
- Undo unwanted strokes and choose a transparent or white background with optional whitespace cropping.
- Create and download the PNG, then insert it into a document or image.
Example
Write your name in black, choose transparency and enable cropping. The exported PNG can sit on a document without a white rectangle around it.
How it works & limits
Input points are joined into smooth curves and stored by stroke for undo. A fixed 1000×400 drawing space survives screen resizing, and cropped exports retain a small padding.
This makes an image; it does not provide identity verification or certificate-based digital signing. Up to 100 strokes are supported. Reloading clears the drawing. The checkerboard and guide line are not exported.
Frequently asked questions
Why does the transparent background look black?
Some viewers display transparent pixels against black. Check it on a white document or export with a white background.
Is my drawing saved automatically?
No. It lasts only while this page stays open. Download the PNG before navigating away.