PDF to Grayscale Converter - Free Online

Convert color PDFs to grayscale or pure black & white to save printer ink. The layout is preserved.

🎨 PDF 转灰度

选择 PDF 文件

支持拖拽 PDF 文件至此

How to Use

Upload the color PDF you want to convert.
Choose grayscale or pure black & white mode.
Apply to all pages or a specific range.
Click the convert button.
Download the converted PDF - layout preserved.

Features

Convert a color PDF to grayscale or pure black & white
Save printer ink and toner
The original layout is fully preserved

Privacy

Your file is processed locally in your browser. It is not uploaded to any server and never leaves your device.

FAQ

Is this tool free?

Yes, it is completely free - no account, no registration.

Are my files uploaded?

No. Files are processed locally in your browser. Your documents never leave your device.

What is the difference between grayscale and B&W?

Grayscale keeps brightness levels, while B&W thresholds pixels to pure black or white for maximum ink savings.

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