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PDF to Grayscale / B&W
PDF to Grayscale / B&W
What is this tool?
A PDF grayscale converter with two modes. Grayscale removes colour but keeps every shade of grey, so photos stay smooth. Black & white turns each pixel pure black or pure white using a threshold you set, which gives sharp text for printing or faxing.
When to use it
- Saving colour ink or toner when printing a long document
- Making a fax- or copier-friendly black-and-white copy
- Preparing a form for a mono laser printer
- Checking how a colour design reads without colour
- Cleaning up a scan with a tinted background
How to use it
- 1Drop in a PDF
- 2Choose Grayscale or Black & white
- 3For black & white, adjust the threshold until the text looks right
- 4Click Convert PDF and download the result
Frequently asked questions
What does the threshold do?
In black & white mode, pixels brighter than the threshold become white and the rest become black. Raise it if pale text is disappearing.
Can I still select the text?
No. The pages are redrawn as images to change every pixel. Keep your original if you need the text.
Which mode is best for printing?
Grayscale for pages with photos, Black & white for text-only pages where you want the sharpest lines.
Is my PDF uploaded?
No — it's processed entirely in your browser.