Black and white photo converter
Some forms ask for a black-and-white photo, or a signature in black ink on a white background.
🔒 Your image is processed on this device. It is never uploaded.
Which style should I pick?
Grayscale keeps every shade, which suits photos. Pure black and white turns each pixel fully black or white, using a cut-off taken from your picture's own brightness. That gives crisp signatures and scanned text. If your form also has a size limit, compress the result afterwards with compress to KB.