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Grayscale PDF ​

Convert all colors in a PDF to grayscale, producing a black-and-white version of the document.

API Endpoint ​

POST /api/v1/tools/grayscale-pdf

Accepts multipart form data with a PDF file. No settings field is required.

Parameters ​

This tool has no settings parameters. Upload the PDF file directly.

Example Request ​

bash
curl -X POST http://localhost:1349/api/v1/tools/grayscale-pdf \
  -H "Authorization: Bearer si_your-api-key" \
  -F "[email protected]"

Example Response ​

json
{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/document.pdf",
  "originalSize": 3200000,
  "processedSize": 2800000
}

Notes ​

  • All color spaces (RGB, CMYK) are converted to grayscale, including embedded images, vector graphics, and text.
  • The output file is often smaller than the original because grayscale data requires fewer bytes per pixel.