Version 0.5.6b. This is the final version. Jpgfdraw has now been replaced by flowframtk.
Jpgfdraw can be downloaded from its home page: http://www.dickimaw-books.com/software/jpgfdraw/.
Yes (in both senses), but you may only use Jpgfdraw if you agree to the terms of the GNU General Public License.
Jpgfdraw was primarily designed to work with LaTeX, so it uses TeX units, where pt is a TeX point (72.27pt = 1in) and bp is a "big point" or PostScript point (72bp = 1in).
The default font is set to SansSerif, which should be available on most systems. If not, or if you'd rather have a different font as the default, you will need to edit the language/dictionary.txt file. Find the line that says
font.default=SansSerifand change SansSerif to the default font of your choice. Note that the default font is the font obtained when clicking on the ``Default'' button in the font dialog box, and is not necessarily the font used on start up, as the settings from the previous instance of Jpgfdraw are set at start up.
Jpgfdraw comes with the Java command-line application eps2jdr, which will convert from Encapsulated PostScript (EPS) to Jpgfdraw's native JDR format. (Note that this is still experimental and restrictions apply, see jdrutils-en-GB-0.5.6b.pdf for further details.)
Because Jpgfdraw's marker mechanism is more complicated, since it allows for mid-markers and markers that have a fixed orientation. All markers are therefore exported as filled paths.