I have seen where the font in the source PDF is not the same as seen in the received PDF.

Is that a question, statement, or what?

If you create a PDF file with fonts embedded (you can check on this via Ctrl-D in Acrobat or Reader) and simply send that PDF file to another system, then the PDF file will display and/or print with the same font that you embedded in the PDF file when you created it.

If you chose not to embed the font or the font was not embeddable (all the standard fonts bundled with Windows and MacOS are embeddable), then unless the recipient of the PDF file has that font installed on their system, what will be displayed is text using a substitution font. The widths of the characters will match the original, but depending upon the style of the original, the substation may look vastly different.

          - Dov