Since v. 7.21 Ghostscript cannot decode eexec stream in the attached file. The sample file has been extracted from the sample file of the bug 689372, comment #6, object 5 0 obj. Apparently, binary vs. hex streams is misidentified. Distiller 5 cannot process the file either but Acrobat 5 accepts the stream inside the PDF file.
Created attachment 3634 [details] bin_vs_hex.ps.gz - sample file
Created attachment 3635 [details] patch Don't ship space characters after eexec in embedded PDF fonts but continue to do so in other cases.
The patch is committed as a rev. 8443. Regression testing shows no differences.