Nodes of different colours represent the following:
Solid arrows point from a submodule to the (sub)module which it is
descended from. Dashed arrows point from a module or program unit to
modules which it uses.
Reads PDF file input, adds meta data using pdfmark, and writes
result to output. The output path must be different from the input
path. The output document will be in PDF 1.4 format and printing
quality. List the meta data with pdfinfo(1):
Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.