I have a new problem with GS's pdfwrite device. The EPS contains a CID Font which becomes defect in the PDF. Please have a look at this.
Created attachment 1879 [details] 1243805101.pdf - result from conversion
Created attachment 1880 [details] 1243805101_1.1.eps - original EPS file
I can observe 2 problems : 1. Acrobat 7 reports an invalid FontBBox. 2. Font size appears wrong when PDF is generated with gs8.51, but it is correct when generating with gs8.52
Created attachment 1888 [details] patch1.txt Patch for problem 1 known as http://ghostscript.com/pipermail/gs-cvs/2005-April/005492.html (IM1282)
Oops, it is for problem 2. Problem 1 needs a new fix.
Patch to HEAD for the problem 1 : http://ghostscript.com/pipermail/gs-cvs/2005-December/005864.html See also comments 5,4.