PDF to grayscale
Convert a PDF's pages to grayscale, ready for black-and-white printing.
Drag & drop your files here
or pick from your device
Supported formats: PDF
How to use
- 1
Upload the colored PDF file.
- 2
Click "Convert" and wait while every page is processed.
- 3
Download the grayscale file.
About the PDF to grayscale tool
Color printing costs far more than black and white, and some printers handle grayscale better than their own color translation. This tool converts every page of a PDF to full grayscale in one click — ideal before sending a file to a mono printer or copy center, and for a uniform, formal document look.
An honest caveat: each page is re-rendered as a grayscale image to preserve its look precisely, which means the output loses its selectable text layer — keep the colored original if you'll need the text later. Conversion runs in your browser with no upload.
When do you need this tool?
Saving printer ink
Go grayscale before printing dozens of copies to save on costly color cartridges.
Prepping files for copy centers
Copy centers charge multiples for color — hand them a ready grayscale copy at black-and-white rates.
A uniform document look
Even out a document mixing colored and gray pages from different sources into one consistent output.
Why ToolsRio?
Real privacy
All processing happens inside your browser. Your files are never uploaded to any server, and nobody can see them — not even us.
Free without limits
No watermark, no file-count limits, and no hidden paid tiers.
Instant speed
No waiting for uploads and downloads to a remote server — processing starts immediately on your device.
No sign-up
No account, no email, no annoying ads. Open the tool and use it right away.
Frequently asked questions
Does the text stay selectable and copyable after conversion?+
No, each page is redrawn as a grayscale image to precisely preserve its original look, so the file loses its selectable text layer.
Does this also reduce the PDF's file size?+
Often a little, yes, but the main goal is color conversion, not compression; use the "Compress PDF" tool for dedicated size reduction.