Convert PDF Pages to Grayscale
Create a black-and-white copy for printing or submission. Each page is rebuilt as a grayscale image, so check the result if your PDF contains colour or interactive features.
How to make a PDF black and white — 3 steps
- 1
Add your PDF
Drop the PDF into the box above. The whole document is converted in your browser, one page at a time.
- 2
Preview the grayscale pages
Each page is rendered and rebuilt as a grayscale image. Check pages with charts, forms, or small text before downloading.
- 3
Download the result
Save the black-and-white PDF to your device. The original color file stays untouched.
What happens to text, images, and colour
This is a visual conversion, not just a change to the printer setting. The editor renders each PDF page, removes the colour by applying a luminance-based grayscale treatment, and rebuilds the page as a JPEG image inside a new PDF.
Because the pages are rebuilt as images, the original selectable text is not kept as PDF text. Links, bookmarks, form fields, annotations, and other interactive features may not survive in the same way. The output can be smaller or larger than the source, depending on how the original PDF was made.
Colour-coded charts, maps, status labels, and highlighted documents deserve a page-by-page check. Two colours that are easy to tell apart on screen can become nearly the same shade of gray.
When grayscale conversion is a poor choice
Use the conversion when you need a visual black-and-white copy for printing or submission. It is a poor fit when you need to search or copy the original text, preserve working links or form fields, keep bookmarks, or rely on colour to explain the document.
If you only want a printer to use black ink while keeping the PDF unchanged, choose "Black and White" or "Grayscale" in the print dialog instead. That changes the print job; this tool creates a new image-based PDF that carries the trade-offs with it.
Your files never leave your device
The PDF is rendered and rebuilt on your device. It is not uploaded to our server during the conversion.
Most online PDF sites upload your document to their servers, process it there, and keep a copy for minutes, hours, or longer. PilotPDF works differently: the page downloads a small processing engine into your browser, and your file is opened and edited in your device's memory using WebAssembly. Nothing is transmitted, so there is nothing for a server to store, leak, or scan. You can even disconnect from the internet after the page loads and the tool keeps working.
Read more about how this works in our privacy-by-design explainer.