To cite package ‘staplr’ in publications use:

  Talagala P, Mancarci O, Padfield D, Matheson G, Vinyals M (2023).
  _staplr: A Toolkit for PDF Files_. R package version 3.2.2,
  <https://CRAN.R-project.org/package=staplr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {staplr: A Toolkit for PDF Files},
    author = {Priyanga Dilini Talagala and Ogan Mancarci and Daniel Padfield and Granville Matheson and Marc Vinyals},
    year = {2023},
    note = {R package version 3.2.2},
    url = {https://CRAN.R-project.org/package=staplr},
  }