Turn every page of a colour PDF into grayscale, ready for printing on a black-and-white printer without wasting colour ink.
Your files never leave your device
Colour printing is expensive, and some offices and universities only accept black-and-white documents. This tool converts every page to grayscale using the brightness of each colour, so charts and photos stay readable.
To save colour ink, to meet submission rules that require black and white, or to preview how a document prints on a monochrome printer.
No. Pages are converted to grayscale images, so text can no longer be selected or searched. Keep your original file for editing.
150 DPI is enough for most printing. Choose 300 DPI for small text or fine details; the file will be larger.
It depends. Colourful pages often get smaller; text-only documents may become larger because pages become images.
Yes. Every page is converted and keeps its original size and orientation.
No. Conversion happens in your browser and the PDF never leaves your device.