When we try to make PDFs of our EPS files for PDS, Distiller spits them out with a very unhelpful error message…
%%[ Error: undefined; OffendingCommand: obj ]%%
%%[ Flushing: rest of job (to end-of-file) will be ignored ]%%
%%[ Warning: PostScript error. No PDF file produced. ] %%
I'm not sure what causes the problem, but I do have a workaround. Re-save the files using Illustrator and then Distill them again. It's annoying and tedious, but I guess you could say the problem is solved.