PDF to Grayscale Converter

Upload a PDF and download a full grayscale version — all processing happens locally in your browser.

Conversion Settings

Higher DPI = sharper output, larger file.

Files never leave your device — 100% browser-based.

Result

No file selected

Upload a PDF to begin

Summary

Upload a PDF and download a full grayscale version — all processing happens locally in your browser.

How it works

  1. Click the upload zone or drag your PDF onto it.
  2. Choose the output render resolution (72–300 DPI) to balance quality and file size.
  3. Click "Convert to Grayscale" and wait while each page is processed.
  4. Review the page count and size summary, then click Download.

Use cases

  • Preparing documents for black-and-white printing to save ink.
  • Reducing PDF file size when color content is not needed.
  • Making colorful reports suitable for monochrome photocopiers.
  • Archiving documents in a uniform grayscale format.
  • Stripping color from scanned PDFs before OCR processing.

Frequently Asked Questions

Last updated: 2026-06-25 · Reviewed by Nham Vu