About this tool
How Grayscale PDF works
Convert a colour PDF to grayscale to reduce file size and save on printing costs. Processed entirely in your browser with no uploads.
Drop your PDF into the workspace above and the tool will produce the result directly in your browser. Processing runs locally - your file never leaves your device, no account is required, and there are no upload limits.
- • Private — processing happens entirely in your browser.
- • Free — no signup, no watermarks, no daily limits.
- • Fast — no upload time, no server queues.