picttoppm(1) on Linux
The text e948aa63ce4b, as Debian 3.0 (Woody), Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm) shipped it.
convert a Macintosh PICT file into a portable pixmap
Flags it lists
-
-fontdir -
-fullres -
-noheader -
-quickdraw -
-verbose