Convert PDF to grayscale
Turns all pages of a PDF into gray tones – useful for black-and-white printing or to check how a document looks without colour.
Processed locally: your files are handled entirely in this browser and are never uploaded to a server.
Loading tool …
How it works
- Choose a PDF file.
- Choose resolution and quality.
- Click “Convert to grayscale” and download the new PDF.
Notes and limitations
- To catch every colour reliably, each page is rendered as an image and converted to gray. Text in the result is therefore no longer selectable or searchable.
- The conversion uses the standard luminance weighting (ITU-R BT.709), so colours keep their perceived brightness.
- Higher resolution means better quality and a larger file. Links and form fields are lost.
Frequently asked questions
Why is the file larger than before?
Text-only PDFs are very compact; as images the pages need more space. Choose a lower resolution or quality for smaller files.