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Published on August 1, 2026

Convert PDF from RGB to CMYK with Python

A Python tool with GUI and CLI to easily convert RGB PDFs to CMYK format for professional printing.

view repository on github ->

I recently built a Python application to solve a common problem in the printing industry: converting PDF files from RGB to CMYK color space.

This tool supports both a graphical user interface (GUI) and a command-line interface (CLI) for batch automation. It requires Python 3.7+ and Ghostscript 10.x to be installed on your Windows machine.

You can find the source code and installation instructions on my GitHub repository.