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.
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Result
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Original
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Grayscale
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Summary
Upload a PDF and download a full grayscale version — all processing happens locally in your browser.
How it works
- Click the upload zone or drag your PDF onto it.
- Choose the output render resolution (72–300 DPI) to balance quality and file size.
- Click "Convert to Grayscale" and wait while each page is processed.
- 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