The above PS tools are Mac implementations of
Angus Duggan's utilities for manipulating PostScript files
(usually created by dvips).
For more information about each tool, select the corresponding
item in the Help menu.
After a PostScript file has been selected, each tool will look
in the Help-files folder for a file named ``<tool> examples''.
If found, the contents will be displayed in the window
just before the Options prompt so that you can cut and paste
the examples. Feel free to remove/rename/edit the supplied files.
DVIDVI and the PS tools can be asked to create an output file with the
same name as the input file ( temporarily renames the input file).
They will also repeat the Options prompt if an error is detected
in the given options, so there is no need to select the input and output
files again.