Convert any PDF to black & white — perfect for printing or accessibility. No upload, instant result.
Converting a PDF to grayscale removes all colour information, replacing it with shades of grey. Useful when printing on a black-and-white printer to avoid colour ink charges, when preparing documents for greyscale-only workflows, or when archiving in a standardised format. This tool renders each page via pdf.js and applies a greyscale transformation using the Canvas API.
Click to select or drag & drop your PDF here
Each page is rendered as grayscale image. Works on all PDFs including scanned documents.
Greyscale PDFs are often required for printing on monochrome laser printers, for accessibility audits of non-colour presentations, for archiving where colour is not needed, or for sharing draft documents where colour is distracting. The conversion re-renders each page as a greyscale image, which also means the output PDF is always compatible with all PDF viewers regardless of their colour support.
Click or drag & drop. Stays on your device.
Choose settings — browser processes locally.
Instant download. Free, no account.
Converting to grayscale is useful when printing on black-and-white printers to avoid colour ink wastage, when a printer or copy shop requires black-and-white documents, or when converting for accessibility or archiving. Grayscale PDFs are also typically smaller in file size than their colour equivalents.
This tool renders each PDF page using pdf.js, applies a grayscale transformation using the Canvas API, and compiles the result back into a PDF using pdf-lib — entirely in your browser. Works on text-based and scanned PDFs alike.