Convert all pages to grayscale to save ink when printing.
Drop your PDF here
or click to select
Choose a fileFusionPDF's grayscale tool converts any color PDF to black and white directly in your browser. All color images, colored text, and colored backgrounds are desaturated to shades of gray — reducing file size and making the document print-ready for monochrome printers, all without uploading your file.
Drop your PDF into the upload area. The tool processes every page, converting all color content to grayscale using a luminance-preserving algorithm that maintains readability and visual contrast. Click Convert to Grayscale and download the black-and-white PDF immediately. The file size is typically reduced compared to the color original.
Grayscale conversion is useful when printing on a monochrome printer to avoid color printing costs, when submitting documents to platforms that require black-and-white files, when preparing scanned documents for OCR processing, or when reducing file size by removing color image data from a document.
FusionPDF converts color to grayscale entirely in your browser — your PDF never reaches a server. The tool uses PDF.js and canvas-based processing to desaturate each page accurately. It is free, requires no account, and works on any device. The resulting PDF is smaller and print-ready for any monochrome output device.