To cite package ‘pdfcombiner’ in publications use:

Choy S (2026). pdfcombiner: Graphical User Interface for Manipulating PDF and Image Files. R package version 1.9.8, https://github.com/stevechoy/pdfcombiner.

Corresponding BibTeX entry:

  @Manual{,
    title = {pdfcombiner: Graphical User Interface for Manipulating PDF
      and Image Files},
    author = {Steve Choy},
    year = {2026},
    note = {R package version 1.9.8},
    url = {https://github.com/stevechoy/pdfcombiner},
  }