The attached test file fails to render properly in Ghostscript, but works fine in Acrobat Reader 5. All the glyphs show up as empty boxes in Ghostscript and there are numerous messages like: Substituting .notdef for V Substituting .notdef for B Substituting .notdef for P Substituting .notdef for F Substituting .notdef for parenleft
Created attachment 226 [details] HR210451.pdf
Fixed with a (hopefully rarely triggered) heuristic improvement that uses the format 3,0 cmap when the 'post' doesn't contain glyphs that are in the 'prebuilt_encoding' derived from the /Differences info in the PDF Font /Encoding info. The patch is at: http://www.ghostscript.com/pipermail/gs-cvs/2004-January/003951.html