ps2pdf

I got a bit confused about the ps2pdf conversion utility. Some people claim, that it invariably creates pdf files with letter pagesize. However there is the argument -sPAPERSIZE=a4 and that should make pdf files with a4-sized pages. It apparently works. If one uses eps files as input files, ps2pdf puts the eps image directly to the border of the pdf file which gets cut off during printing. There should be some utilities to correct this.