Tools / Clean uploaded stamp
Clean uploaded stamp
Remove white backgrounds and recolor ink for a transparent seal PNG.
Clean uploaded stamp turns a white-paper scan into a transparent seal. Raise the threshold until paper disappears, optionally recolour the ink to a standard blue or red, then download a PNG for Stamp PDF or Word.
Clean uploaded stamp FAQ
How do I remove a white background from a stamp scan?
Upload the image, raise the white-threshold slider until only ink remains, preview live, then download the transparent PNG.
Can I recolour stamp ink while cleaning?
Yes. Pick a target ink colour after the background clears so faded scans match your office blue or red standard.
Does Clean uploaded stamp work on phone photos?
Yes, if lighting is even. Crop tightly first if the photo includes desk clutter, then run Clean for best results.
Is Clean free and private?
Yes. The tool is free with no signup. Processing is designed to run in your browser for the primary download path.
When should I use Extract instead of Clean?
Switch to Extract stamp by colour when the seal sits on printed text or a coloured form — Clean is for plain white paper.