Draw vector graphics to scale using a descriptive language
Drawj2d creates technical line drawings using a descriptive language. It writes pdf, svg, eps, emf and dxf vector graphics or png images. It runs on all platforms that run Java. It is inspired by Asymptote but with a tcl-like syntax and 2D only.
ImagePDFMerger is a 100% java console application for converting/merging any number of images into one single PDF document. Designed to be run unattended on any computer, it watches a directory and when files appear will trigger the conversion.
PhotoCat is another tool to batch-run image thumbnails. And create an html hierarchy that mirrors the directory hierarchy. Many different sizes can be created in a sigle pass like Emial and Thumbnail. Gui or Commandline supported.