PDF to Greyscale
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.
How It Works
- Upload a PDF by clicking the drop zone or dragging a file onto it.
- Click Convert to process the file.
- A new
greyscale.pdfdownloads with all pages converted to black and white.
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.
Options
This tool has no configurable options. The greyscale conversion uses a standard luminance formula and JPEG quality is fixed at 90%.
Output Format
- A single
greyscale.pdffile containing all pages as greyscale JPEG images.
Use Cases
- Preparing documents for black-and-white printing to save on color ink costs.
- Meeting submission requirements for legal or government filings that mandate greyscale.
- Reducing file size on color-heavy PDFs (JPEG greyscale images are smaller than color).
- Creating a consistent visual style across documents with mixed color and B&W pages.
Tips
- 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.
- For more control over color adjustments (brightness, contrast, saturation), look at the Adjust Colors tool or the Greyscale node in the PDF Workflow Builder.