Grayscale PDF
Convert colour PDF pages to grayscale to reduce ink use and shrink file size for printing or archiving.
Drop a PDF here
or click to choose a file
Accepted: PDF · No upload
How it works
Each page is rendered to canvas, the grayscale filter is applied, then the result is re-encoded into a new PDF.
Privacy
Runs entirely in your browser.
Known limitations
- Pages are rasterized; text is no longer selectable.
- Digital signatures become invalid.
- Quality depends on the source PDF; heavily detailed images may look soft.