How to embed fonts in a pdf file

Usually one of the reasons that your camera-ready paper can not pass the format check through the sites like IEEE PDF eXpress, is that any of the fonts Times-Italic, Times-Roman, Times-BoldItalic, Times-Bold, Helvetica, or Courier are not embedded. To examine the fonts actually used in a PDF file, and check if they are embedded correctly you can use the following command: pdffonts file.pdf

Here is the solution to embed the fonts into a PDF file:

latex file.tex

bibtex file

latex file.tex

latex file.tex

dvips -Ppdf -G0 -tletter file.dvi

ps2pdf -dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress file.ps file.pdf

Source: here