It seems the PostScript documentation has bounding box issues; Ghostscript only shows the upper left corner of the page, and the Acrobat Distiller distills it in the upper left corner of a letter-size page. Unfortunately, the first release of the OpenMotif source code seems to come bereft of the documentation source (if I recall, the Motif 2.0 source distribution included doc source and tools to compile it). Such source would be useful, not only to fix the docs, but also to distribute them in different file formats and paper sizes.