How to make a PDF black and white
Grayscale prints cheaper, scans cleaner, and often shrinks the file — all without touching the text.
Updated July 5, 2026
Do it now with Grayscale PDF — free, no signup. Open →Why go black and white
Color pages cost more to print and burn through color cartridges even when the color adds nothing. Converting to grayscale means predictable, cheaper monochrome printing, and it can noticeably shrink a file that was heavy on colored graphics. Grayscale scans also reproduce more cleanly on basic office copiers.
How Pditor does it
Pditor recolors every page to shades of gray — text, images, and vector graphics — while leaving the layout, fonts, and resolution untouched. The result is a faithful black-and-white version of the same document, not a lower-quality one.
Private and free
The tool runs in your browser session and your file auto-deletes within an hour — no watermark, no signup. Want a smaller file overall? Follow up with Compress PDF.
Frequently asked questions
- How do I make a PDF black and white?
- Open the Grayscale tool, drop in your color PDF, and convert. Every page is recolored to grayscale while the layout and text stay the same. It's free, no signup.
- Why convert a PDF to grayscale?
- Black-and-white printing is cheaper and avoids color-cartridge use, grayscale scans are cleaner, and removing color often reduces the file size.
- Will the text still be sharp?
- Yes. Only the color is changed to gray; text, images, and layout keep their position and resolution.
- Can I undo it?
- The download is a new grayscale PDF; your original color file is unchanged and auto-deletes within an hour, so keep a copy if you need color later.