How to Convert PDF to Greyscale – Step by Step

Convert a color PDF to black and white for economical printing or a classic look. The PDF to Greyscale tool offers multiple greyscale methods — luminosity (natural), average, and lightness.

Step-by-Step Guide

Open the PDF to Greyscale page.

Upload your PDF.

Choose a greyscale method: Luminosity (weighted by human perception — most natural), Average (simple average of RGB), or Lightness (midpoint of min/max RGB).

Click Convert to Greyscale and download your black-and-white PDF.

Tips for Best Results

• Luminosity gives the most natural-looking greyscale — it's what most photo editors use.
• Average mode is faster but can lose contrast on certain color combinations.
• Use this before printing to save color ink on documents that don't need color.