LeBeau B (2018). “pdfsearch: Search Tools for PDF Files.” Journal of Open Source Software, 3, 668. doi: 10.21105/joss.00668.

@Article{,
  author = {Brandon LeBeau},
  title = {{pdfsearch}: Search Tools for PDF Files},
  journal = {Journal of Open Source Software},
  year = {2018},
  volume = {3},
  issue = {27},
  pages = {668},
  doi = {10.21105/joss.00668},
}