pspic.tmac
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Equiv for gropdf is pdfpic (which is dependent on a program pdfbb (to
extract MediaBox (etc.) from the pdf) which is not written yet!  Meanwhile
you could use \X'pdf: pdfpic filename -L|R|C wid (hgt) (linelen)' (-R and -C
require a linelen) Wid or hgt may be zero (in which case the same scaling as
the other axis is used).  The disadvantage of this call (over pdfpic macro)
is that it is transparent to groff, after placing the image the current X/Y
position remains what it was, so you need to do your own 'motion control'
(like a .sp) to "step over" the image you just placed.

psfig.tmac
----------

No equiv for gropdf.

psatk.tmac
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No equiv for gropdf.

-I : search -I directory for included files

-w : set line width

Another \X : \X'ps: exec 0 setlinejoin'\X'ps: exec 0 setlinecap' for mom

Cater for fonts with >255 glyphs (currently  accessing a glyph above 255
(i.e. \N[260]) causes a fail).  This will be fixed when font subsetting is
implemented.