To provide better \special compatibility with dvips and other
DVI translators, can process \special commands like
\special{psfile=foo llx=100 lly=100 urx=172 ury=172 rwi=720 rhi=720}
where rhi is optional (it is used to change the aspect ratio).
Note that llx and the other keywords shown above can only be used
after psfile. Their order doesn't matter.
It is best not to type in such \special commands yourself;
you should let a macro package generate them.
The given file (foo in the above example) should normally be an
EPSF file containing a BoundingBox comment.
For compatibility with Wilfried Ricken's DirectTEX,
also allows PICT files in a PSFILE \special.
If foo is a file of type PICT then will read in the picture
stored in the data fork.
If the given file name ends in ``.pict'' then will get the
picture from a PICT 256 resource (and if you put a suitable BoundingBox
comment in the data fork then epsf.tex or boxedeps.tex
can be used to position the image).
Note that if the given file does not contain a BoundingBox comment
(PICT files cannot have such a comment)
then you will need to supply the bounding box coordinates to epsf.tex;
for example, \epsfbox[0 0 72 72]{foo}.
The numbers must be given in bp units and in the following order:
lower left x, lower left y, upper right x, upper right y.