PDFjam is a small collection of shell scripts that provide a simple interface to some of the functionality of the pdfpages package for pdfLaTeX. Facilities include n-up imposition, page rotation, reflection and trimming, selection of pages, and many more. PDFjam depends on a working installation of (pdf)LaTeX, complete with the pdfpages package. For Mac OS X, some example applications (droplets) are provided for drag-and-drop access.