The Java source is contained in subdirectories of
jpgfdraw-0.5.6b/src:
jpgfdraw/src/jdr/
This contains the source code for jdr.jar. This deals with
all the information that constitutes an image as well as methods to
save and load images. The code that deals with parsing PostScript
code (used by eps2jdr) is still experimental.
jpgfdraw/src/jdrresources
This contains the source code for jdrresources.jar. This
deals with application resources (such as the dictionary).
jpgfdraw/src/jpgfdraw
This contains the source code for jpgfdraw.jar. This deals
with the part of Jpgfdraw.
jpgfdraw/src/jdrview
This contains the source code for jdrview.jar. This deals
with the part of Jdrview.
jpgfdraw/src/*2*
These directories contain the source code for the command line
converters that together form jdrutils.