Displays a PDF document or a PostScript document (after conversion to pdf using gv, xpdf, or acrobat reader in that order of choice), or perhaps another pdf viewer. One can use the viewer to print the document but, alternatively, leave the viewer and use vpp's facilities to print selected pages to a one- or two-sided hardcopy or an A5-booklet. Can also be used to re-arrange pages in a PDF document.

The author is Wybo H. Dekker.