invert-pdf.club

A free online PDF colour inverter. (Perfect for printing dark PDFs.)

Try it online at invert-pdf.club!

Running locally

Docker (recommended)

sudo docker image build . -t invert-pdf
sudo docker run -p 8080:8080 --env PORT=8080 invert-pdf:latest

Open localhost:8080 and enjoy!

Manually from source

1. Install ImageMagick and ghostscript from your package manager.

sudo apt install imagemagick ghostscript

2. (Recommended) Use a virtual environment for your python dependencies.

virtualenv venv
source venv/bin/activate

3. Install python dependencies. (Python 3.6+)

pip install -r requirements.txt

4. (Optional) Run the tests.

sh run_tests.sh

5. Run the application in development mode.

python pdfinvert/main.py