Freeware: Wwf

WWFDesktop 3.11WWFDesktop allows to change your computer's boring wallpaper (the background image on your desktop) and turn it into a collection of the World Wide Fund for Nature's best shots. It also includes a built-in screensaver, calendar and memo note.

Workaholic.PDFToolBox 1.5PDFToolBox is a PDF processing utility. Features: merge many PDF documents, split a PDF document into pages, create visual watermark on a PDF document, extract text from a PDF document, attach files to a PDF, password protect PDF files.