Grayscale PDF
Convert a color PDF to black and white to save ink when printing.
Processed in your browser. Files are never uploaded.
Drop your PDF file here
or click to browse
Max file size: 100MB
Pages are converted to grayscale images, so text in the result can no longer be selected. Run OCR PDF afterwards if you need it searchable.
Grayscale PDF online, free and secure
Convert a color PDF to black and white to save colored ink, prepare documents for monochrome printers, or meet submission rules that require grayscale. Pick the output quality and download a grayscale copy, all processed in your browser.
How to grayscale pdf
Upload your PDF
Select the color PDF you want to convert.
Choose the quality
Pick a smaller file, a balanced result, or high quality for printing.
Download
Each page is converted to grayscale and saved as a new PDF.
Why use Kobra PDF to grayscale pdf
- Save colored ink and toner
- Three quality levels
- No upload, no account
Grayscale PDF: frequently asked questions
- Can I still select text after converting?
- No. Pages are converted to grayscale images, so the text is no longer selectable. Run the result through OCR PDF if you need it searchable again.
- Which quality should I choose?
- Balanced (150 DPI) suits most documents. Choose high quality for detailed print work, or small file to share by email.
- Will my file get bigger?
- It can, because pages become images. Text-only documents may grow, while image-heavy documents often shrink.
- Is my PDF uploaded?
- No. The conversion runs entirely in your browser.