Upload a photo of your signature on paper, then use the intensity slider — it detects the paper's brightness behind the ink (even with shadows or uneven lighting from a phone photo) and pushes it to pure white, while keeping the signature dark and clean.

Yes — it analyzes brightness region by region rather than using one fixed threshold, so it handles uneven lighting across the page (like a shadow from your phone or a corner of paper catching more light) better than a simple filter would.

No — the image is converted to grayscale first, so blue, black, or any other ink color ends up as clean dark ink on white, regardless of the original color.

Any form that asks for a signature photo — exam applications, job applications, visa forms, bank KYC, college admissions — not just government exams. Anywhere a portal wants a clean, white-background signature image, this works.

No — this tool focuses purely on cleaning up the background and ink at your photo's original resolution. If your form needs an exact pixel size or file-size limit, resize the downloaded image separately to match what it asks for.