To cite package ‘pdfsigner’ in publications use:

Leite A, Vasconcelos H, Bezerra D, Wasiliew M, Amorim C, Nascimento Barreto J (2026). pdfsigner: Digitally Sign and Verify PDF Documents. R package version 0.3.0, https://github.com/strategicprojects/pdfsigner.

Corresponding BibTeX entry:

  @Manual{,
    title = {pdfsigner: Digitally Sign and Verify PDF Documents},
    author = {André Leite and Hugo Vasconcelos and Diogo Bezerra and
      Marcos Wasiliew and Carlos Amorim and Júlia {Nascimento
      Barreto}},
    year = {2026},
    note = {R package version 0.3.0},
    url = {https://github.com/strategicprojects/pdfsigner},
  }