When embedding a small AndaleMonoWTG font subset, pdfwrite generates True Type data of 921K size. Likely we should filter 'post', and possibly should compact the glyph index space with adjusting subglyph indices in composite glyphs.
Passing to Ken since he handles pdfwrite from now.
Enhancement still missing in Ghostscript 9.03
See the bug 688823 for additional details and the sample file.