Convert a PDF to grayscale
Turn colour pages into black and white.
Your files never leave your device.
How to make a PDF black and white
Add the colour PDF.
Keep text selectable (recommended), or convert pages to images for a guaranteed result.
Press “Convert to grayscale” and download.
Frequently asked questions
Does grayscale make the file smaller?
Often, yes, especially when the PDF has colour photos.
Will printing in black and white look the same?
Yes, and you see the result before printing, so there are no surprises with faint colours.
Are my files uploaded to a server?
No. This tool runs entirely in your browser, so your files stay on your device and are never sent anywhere. It even works with the internet switched off.
Is it free, and are there limits?
It is currently free, with no sign-up, no daily limit on files and no watermark added to your results.