Is a NeXTStep Interface to pbmplus by Jef Poskanzer. The converting UNIX tools and their man-pages are placed in the app-wrapper and may also be accessed with a shell. If a file-extension is known Workspace- Manager will show it as an icon similar to the tiff file-icon. However not all extensions may be implemented - so try to Command-drop souch a file onto the application-icon on the desktop and look for errors in the console. If it works tell me and send a test-imagefile.
