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How to Convert a PDF to Grayscale for Printing

4 min read · Updated October 2026

Colour ink is expensive, and a colourful document often prints better in black and white. Converting to grayscale turns every colour into a shade of grey.

Try it now: Grayscale PDF

Free, no sign up, and the file stays on your device.

Open Grayscale PDF

How to convert

  • Open Grayscale PDF and add your file.
  • Choose the picture quality.
  • Press Convert to grayscale.
  • Download the result.

Important to know

To convert colours reliably, each page is redrawn as a picture. This means the text cannot be selected or searched in the new file, and the file may be larger. Keep your original for editing and copying.

Choosing the quality

  • Normal works for large type.
  • High is a good default for printing.
  • Very high keeps small text sharp but makes bigger files.

Need text again?

Run OCR PDF on the grayscale file to add searchable text.

Frequently asked questions

Is my file uploaded?

No. The work happens in your browser, so your file stays on your device.

Ready to start?

Open Grayscale PDF