This work is based on https://github.com/ralfstuckert/pdfbox-layout (MIT License) as of October, 2020 and extended by "easytable" https://github.com/vandeseer/easytable (MIT License) as of March, 2021 and extended by "boxable" https://github.com/dhorions/boxable (Apache 2.0 License) as of March, 2021