PNG COLLECTION · SHARED LOCAL IMAGE ENGINE

Signature, Logo & Stamp Cleanup

Clean a scanned signature, logo or stamp: remove paper color, recolor ink, trim margins, adjust alpha, thicken strokes and add outlines with staged edits and undo.

Browser processingOriginal-size exportsPreview + staged edits

1. Open an image

Choose file

PNG, JPG or WebP · up to 20 MiB, 8 million pixels. Drop one file anywhere in the workspace.

No image loaded.

2. Choose the operation

Operation

Custom palette · 2–32 hex colorsColorSecond / replacement colorAmount / threshold · %Color tolerance · %Match-edge softness · %Edge radius · pixelsLevels per RGB channelCell / band size · pixelsRepeatable seedGradient direction

Preview starts from the current working image. Keep an edit to chain operations. Original upload remains available with Reset.

3. Preview & export

Choose an image or try the example.

ShowPreview backgroundClick the working image to pick a color.

Working image · click to pick

Your image will appear here.

Operation preview

Preview an operation to compare.

Load settings

Pixel operations work with browser-decoded 8-bit RGBA. They can discard source metadata, color profiles or higher bit depth. PNG compression compares decoded pixels, not byte-identical files. Animated images are rejected here; use animation tools instead.

Using Signature, Logo & Stamp Cleanup

Clean a scanned signature, logo or stamp: remove paper color, recolor ink, trim margins, adjust alpha, thicken strokes and add outlines with staged edits and undo.

Open an image or try the example. Generators can start with an empty canvas.
Choose an operation, tune its visible controls and preview. Click the working image to pick a color.
Keep edits to chain operations, undo if needed, and download the PNG or supported data export.

Example

Try the example and compare before downloading.
Use Save settings to repeat a workflow on another image.

Questions & answers

Are my images uploaded for processing?

Image operations run in your browser. The website also uses ads and analytics as explained in its privacy policy.

Does this preserve every property of the original PNG?

Pixel edits use browser-decoded 8-bit RGBA and re-encode the result. Original metadata, higher bit depth and some color-profile details may be lost. The inspector’s metadata-only edits preserve image chunks.

Can I edit animated PNGs here?

These workbenches handle still images. Animated PNGs and animated WebP files are rejected to avoid silently dropping frames.

How large can my image be?

Inputs are limited to 20 MiB and 8 million pixels. Some text pixel exports have a smaller 250,000-pixel limit to keep the interface responsive.

What does exact pixel compression mean?

It verifies every decoded 8-bit RGBA pixel after re-encoding. It is not a claim that metadata, 16-bit samples or source color management are unchanged.