Keep your handwriting private

Remove a signature background and keep the pen strokes.

Turn dark or blue handwriting on light paper into a transparent PNG. Processing runs in your browser, with ink, threshold, noise and preview controls you can judge before download.

Extract a signature ↓

Blue handwritten signature on warm white paper — The displayed result comes from the same browser algorithm used below—no generative model invents or redraws the handwriting.

The same blue signature with a transparent background — The displayed result comes from the same browser algorithm used below—no generative model invents or redraws the handwriting.

Deterministic ink extraction

Turn paper into a transparent signature PNG

Processing stays in your browser. Adjust ink color and cleanup strength while the original handwriting remains the source of every output pixel.

What the controls mean

Protect faint strokes without keeping the paper

Ink mode

Auto compares paper color and darkness. Black and Blue bias extraction toward the chosen ink family.

Cleanup strength

Lower values retain faint pressure changes; higher values discard more paper texture and shadows.

Surface preview

Check transparent edges on white, dark and checkerboard backgrounds before using the PNG elsewhere.

Prepare the image before extraction

1. Crop private content. Remove printed forms, IDs, account details and unrelated handwriting.
2. Use even light. Strong paper shadows can be mistaken for ink.
3. Inspect every loop. Thin counters and pen lifts are the first details lost at high cleanup strength.

When to use signature extraction

Use this for handwriting on light paper. It removes the paper around the ink without generating replacement pen strokes. Check pale lines and small gaps before saving the transparent PNG. For people, products and logos, use the AI Background Remover.