PDF to Blueprint Converter

Converts black text in PDFs to blue for better printing.

Prerequisites

The pdf2image library requires poppler to be installed on your system:

• macOS: brew install poppler
• Linux: sudo apt-get install poppler-utils

Setup

1. Navigate to the project directory:
2. Activate the virtual environment:

source venv/bin/activate

3. Install dependencies (if not already installed):

pip install -r requirements.txt

Usage

Basic usage (outputs to input_blueprint.pdf in the same directory):

python convert_pdf_color.py <your-pdf-file>

Example (tested):

python convert_pdf_color.py example.pdf
# Output: example_blueprint.pdf

Custom output path:

python convert_pdf_color.py /path/to/document.pdf -o /path/to/output.pdf

Tested Configuration

• ✅ Successfully tested with example.pdf
• ✅ Output: example_blueprint.pdf
• ✅ Python 3.11 with virtual environment
• ✅ Dependencies: pdf2image, Pillow, numpy