Embedding font to a pdf for latex submission

Some conferences evaluate the pdf before you are able to submit your paper. Often the common problem is the error in embedding the font. The way to get around this problem is to convert it to ps and then back to pdf. Following commands shows how to do it: 

pdflatex yourfile.tex 
pdftops yourfile.pdf
ps2pdf14 -dPDFSETTINGS=/prepress yourfile.pdf you-newfile.pdf