pdftk CLI for ubuntu 18.04 or later in docker replacement

pdftk

#!/bin/bash

# Build or use cached image and tag with "local/local/ubuntu_pdftk", suppress output
# to maintain compatibility in case you are parsing the pdftk output.
# It will build the image if it's absent or use the cached one.
echo "FROM ubuntu:16.04
RUN apt-get update && \
    apt-get install -y pdftk && \
    rm -rf /var/lib/apt/lists/*" | docker build -t local/local/ubuntu_pdftk - 2>&1 > /dev/null

# Run the pdftk
set -eu
docker run --name pdftk -it --rm --user $(id -u):$(id -g) -v "$PWD:/workdir$PWD" -w "/workdir$PWD" local/local/ubuntu_pdftk pdftk "$@"