Hi,
in general PDFCreator will still embed all fonts by default, unless they are substituted as configured in the printers properties (This mainly affects Arial getting replaced by Helvetica). The font needs to allow being embedded, too. Some applications don't output actual text but render it as vector graphics.
Could any of this be causing the issue you are describing? Please explain what went wrong as detailed as possible and we will be happy to look into it.
Best regards
Robin