Convert a PDF to Greyscale

Strip the color from a PDF and turn every page into clean greyscale. Printing in black and white costs a fraction of color, grayscale files are often smaller, and some submission systems — courts, universities, grant portals — explicitly require it. Colors are converted to perceptually balanced shades of gray so charts and highlighted text remain distinguishable. The conversion runs entirely in your browser; your document is never uploaded.

Choose files or drag & drop here

.pdf · single file

Processed locally in your browser — your files never leave your device.

How to pdf to Greyscale

Upload the color PDF you want to convert.
Click "Convert to greyscale" — no settings are needed.
Download the black-and-white version of your document.

Frequently asked questions

Will charts stay readable in greyscale?

Colors are mapped to distinct gray tones based on perceived brightness, so differently colored bars and lines usually remain distinguishable. Very similar hues may merge.

Does greyscale reduce the file size?

Often yes — color information is discarded, which shrinks image-heavy documents. The exact saving depends on how much color content the original contains.

Is the conversion reversible?

No, color data is permanently removed from the output file. Keep your original PDF if you think you will need the color version again.

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