PDF Runs in your browser
PDF Grayscale Converter
Convert color PDF to grayscale using luminance, average, lightness, desaturate, or custom-weighted methods. Optional B&W threshold, black/white preservation, dithering, ink-usage estimation, before/after histograms, history, and shareable URL. 100% client-side — no uploads.
100% Private Works Offline Instant
Convert color PDF to grayscale using luminance, average, lightness, desaturate, or custom-weighted methods. Optional B&W threshold, black/white preservation, dithering, ink-usage estimation, before/after histograms, history, and shareable URL. 100% client-side — no uploads. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.