Convert PDF to grayscale
Make any colour PDF print-ready in grayscale or sharp black and white.
🔒 Your files never leave your deviceHow to use
- Add your colour PDF
- Pick Grayscale, Clean background or Pure black & white and the quality
- Download the grayscale PDF and print it
About this tool
Colour PDFs waste costly colour ink, and many shop and office printers are black-only, where colour pages can come out faded or blotchy. This tool redraws every page in grayscale, keeping the exact page size, so your document prints cleanly on any printer.
Choose Grayscale for photos and charts, Clean background for mobile scans with grey paper, or Pure black & white for crisp text on forms, notes and certificates. Your file is processed on your own device and never uploaded.
Frequently asked questions
Which mode should I choose?
Grayscale keeps photos and shades. Clean background whitens the grey paper of phone scans. Pure black & white gives the sharpest text for forms and notes, and you can adjust the black level.
Will the page size change?
No. Each page keeps its original size, so A4 stays A4 and prints exactly as before.
Can I still select or copy text?
No. Pages are saved as images. If you need searchable text, run the grayscale PDF through our OCR tool.
Is Standard or High quality better?
Standard (150 dpi) is fine for most printing and keeps the file small. High (200 dpi) is sharper for small text but gives a bigger file.
Are my files uploaded to a server?
No. Convert PDF to grayscale runs inside your browser, so your document never leaves your phone or computer. Close the tab and nothing is kept.
Is Convert PDF to grayscale free?
Yes. You can use it free without creating an account. Premium removes file-size and batch limits for heavy users.
Does it work on mobile?
Yes. It works in Chrome, Safari and every modern browser on Android, iPhone, Windows and Mac. You can also install Pixel Path PDF as an app from your browser menu.