The attached file generates an "Error: /undefined in --run-" when read by Ghostscript head (r10559) or earlier versions. Acrobat 9.2 and Apple Preview 5.0.1 open the file without problem. The command line I'm using for testing: bin/gs -sDEVICE=ppmraw -o test.ppm ./9658857.PDF
Created attachment 5807 [details] 9658857.PDF
Created attachment 5814 [details] patch Assume /FirstChar is 0 and /LastChar is 255 when they are not defined, and issue a warning.
The patch has been committed as a rev. 10561. Regression testing shows no differences.