PDF to Grayscale
Converts a color PDF to shades of gray or to pure black and white.
How to convert
Everything lighter than the threshold becomes white, and everything darker becomes black.
To make a PDF black and white, drag the file in and pick a conversion mode.
Grayscale or black and white
In grayscale, every color turns into a gray of the same brightness: a red heading stays darker than a yellow fill. Black-and-white mode keeps only black and white; it suits text pages and scans that get printed without halftones. The threshold sets the cutoff: everything lighter than the threshold becomes white.
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