PDF black and white converter — free online
Make any PDF black and white in seconds. Cheap printing, smaller file, professional look.
'Black and white' usually means grayscale: text and lines stay sharp black, photos become a range of grays. We do this via Ghostscript with proper color management so output looks great in print.
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Frequently asked questions
Pure 1-bit black and white (no gray) — possible?
That's a different operation (threshold/dithering) and rarely what people want — it makes photos look terrible. We do grayscale, which is what's almost always meant by 'black and white' for documents.