Is there a way to download the documentation to multiple or single PDF files?

[rimelek (Ákos Takács)]

Downloading documentation for offline reading at the Linux console

You can clone the github repository: GitHub - docker/docker.github.io: Source repo for Docker's Documentation

You can clone and build a local documentation image.

git clone git@github.com:docker/docker.github.io.git
cd docker.github.io
docker build . -t localhost/docker-docs
docker run -d --name docker-docs -p 4000:4000 localhost/docker-docs