43 lines
1.9 KiB
Markdown
43 lines
1.9 KiB
Markdown
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---
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title: PDF to Greyscale
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description: Convert a color PDF into a greyscale (black-and-white) version. Produces a new PDF with all color removed from every page.
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---
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# PDF to Greyscale
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Converts a color PDF into a greyscale version. Each page is rendered, desaturated, and re-embedded as a JPEG image in a new PDF. The output preserves the original page dimensions.
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## How It Works
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1. Upload a PDF by clicking the drop zone or dragging a file onto it.
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2. Click **Convert** to process the file.
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3. A new `greyscale.pdf` downloads with all pages converted to black and white.
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Under the hood, each page is rendered at 2x scale, the pixel data is run through a greyscale filter, then re-encoded as a JPEG at 90% quality and placed in a fresh PDF document.
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## Options
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This tool has no configurable options. The greyscale conversion uses a standard luminance formula and JPEG quality is fixed at 90%.
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## Output Format
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- A single `greyscale.pdf` file containing all pages as greyscale JPEG images.
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## Use Cases
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- Preparing documents for black-and-white printing to save on color ink costs.
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- Meeting submission requirements for legal or government filings that mandate greyscale.
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- Reducing file size on color-heavy PDFs (JPEG greyscale images are smaller than color).
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- Creating a consistent visual style across documents with mixed color and B&W pages.
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## Tips
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- Because each page is rasterized and re-embedded as JPEG, the output is image-based. Text in the original PDF will no longer be selectable or searchable. If you need searchable text afterward, run the output through the OCR tool.
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- For more control over color adjustments (brightness, contrast, saturation), look at the Adjust Colors tool or the Greyscale node in the [PDF Workflow Builder](./pdf-workflow).
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## Related Tools
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- [PDF to JPG](./pdf-to-jpg)
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- [PDF to PNG](./pdf-to-png)
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- [PDF Workflow Builder](./pdf-workflow)
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