Convert a PDF to grayscale
Convert every page of a PDF to grayscale to save colour ink and get print-ready black and white documents. Free, private, runs in your browser.
- Files never leave your device
- Free, no sign-up
- No watermark
About Grayscale PDF
Remove the colour from a PDF in one click. Grayscale documents save colour ink and toner, meet submission rules that ask for black and white, and show how a design will look on a monochrome printer. Every page is converted on your own device, so the file is never uploaded, and you can download the black and white copy straight away.
How to use Grayscale PDF
- 1
Add the colour PDF you want to convert.
- 2
Click Convert to grayscale.
- 3
Wait while each page is converted.
- 4
Download the black and white PDF.
Why use this tool
- Converts every page in one pass.
- Saves colour ink and toner when printing.
- Useful for portals and courts that require black and white submissions.
- Lets designers preview how a file prints in monochrome.
- Nothing is uploaded, ever.
Frequently asked questions
Pages are re-drawn in shades of grey, which can turn them into images. Keep your colour original if you need searchable text.
It depends on the content. Photo-heavy documents may shrink, while simple text pages can grow slightly. Run Compress PDF afterwards if size matters.
This tool converts the whole document. Split out the pages first with Split PDF if you only need part of it in grayscale.
Grayscale keeps shades of grey, so photos and charts stay readable. Pure black and white would lose that detail.
Yes. There is no account or watermark, and the PDF is processed in your browser.
Yes. It runs in any modern browser on Android and iOS as well as on Windows, macOS and Linux, with nothing to install.
Yes. There is no account, no watermark and no usage limit. The tool runs in your own browser, so there is no server cost to charge you for.
Some printers mix colour inks to produce grey. Choose the black-only or grayscale option in your printer settings as well for the biggest savings.
Related tools
All PDF tools →- Compress PDFReduce PDF file size by re-encoding page images at the quality you choose, or strip metadata losslessly.
- PDF to JPGConvert every page of a PDF into a high-quality JPG image at up to 288 DPI.
- Watermark PDFStamp a text watermark such as CONFIDENTIAL or DRAFT across every page, centred or tiled, with your colour, size, angle and opacity.
- Merge PDFCombine multiple PDF files into one document in seconds.
- Split PDFSplit a PDF into single pages, custom page ranges, every N pages or files under a size limit.
- Organize PDFRearrange PDF pages by dragging thumbnails and remove the pages you do not need.