Grayscale PDF
Convert a colored PDF to black and white to save ink and reduce size.
About this tool
Printing color documents in draft or archive situations wastes expensive ink and toner. Grayscale PDF converts every page of your document to smooth black-and-white, producing a printer-friendly file that is often significantly smaller too.
The tool uses a perceptual luminance formula so photographs keep natural contrast instead of looking washed out. Conversion happens entirely on your device.
How to use Grayscale PDF
1
Add your PDF file
Drag and drop the colored document.
2
Click Apply
Every page is converted to grayscale automatically.
3
Download the grayscale PDF
The black-and-white version downloads immediately.
Frequently asked questions
Why convert a PDF to grayscale?
Mainly to save color ink when printing, to meet submission requirements that ask for black-and-white documents, and to reduce file size.
Will photos look bad in grayscale?
No. The conversion uses a weighted luminance formula (the same principle used in photography) so images keep natural-looking contrast and detail.
Does the text stay sharp?
Yes. Pages are rendered at high resolution before conversion, so text remains crisp and perfectly readable.