Grayscale PDF
Convert a color PDF to grayscale for laser printing and toner saving.
Convert PDF text and images to grayscale for print — free in your browser, files never leave your device.
Calculator Inputs
About Grayscale PDF
Convert a color PDF to grayscale for laser printing and toner saving.
Upload a PDF. Each page is rendered, desaturated with the luminance formula, and rebuilt as a grayscale PDF. Quality controls render scale and JPEG compression.
Text becomes selectable images (rasterized). For native vector grayscaling, use a desktop tool.
Where it is used
Printing, archiving, fax-friendly copies, reducing color-ink use.
How to use the Grayscale PDF
- Select PDF — select a file (application/pdf,.pdf) — PDF up to 50 MB. Rendered and re-encoded locally..
- Quality — enter the value.
- Calculate — press the Calculate button to see the result instantly above.
Formula
Render each page → desaturate pixels (0.299R+0.587G+0.114B) → re-embed as JPEG pages.
Examples
Example
quality:normal
Result: Grayscale PDF (after selecting a PDF)
Frequently Asked Questions
- Vector vs raster?
- This is a raster grayscale — searchability is lost. For native vector output, use Sejda desktop.