just thought that we maybe could safely test the fast (copy) PNG inclusion by pdfxtex, e. g. making some global flag in texmfmp.c, #if defined(pdfTeX) || defined(pdfeTeX) || defined(pdfxTeX) string ptexbanner = BANNER; enum ptexengine_ {PDFTEX, PDFETEX, PDFXTEX}; #if defined(pdfTeX) int ptexengine = PDFTEX; #endif #if defined(pdfeTeX) int ptexengine = PDFETEX; #endif #if defined(pdfxTeX) int ptexengine = PDFXTEX; #endif #endif so that ptexengine is available everywhere and then also add the xwrite_png() with the COPY feature in addition to the standard write_png() into writepng.c and have if(ptexengine == PDFXTEX) xwrite_png(img); else write_png(img); or so in writeimg.c. Is it still worthwile or is pdftex frozen by now for texlive? Regards, Hartmut