First, Read https://forums.adobe.com/docs/DOC-7273
Please post the name of the program you are using so a Moderator may move this message to the correct program forum
This Cloud forum is not about help with program problems... a program would be Photoshop or Lightroom or Muse or ???
I am using Adobe Acrobat to create the pdf copies. I do not have any of the purchased programs from Adobe.
I would very much appreciate some support and advice, please.
In general, if you select to "embed" the fonts in the PDF file, you can make sure that any application that process the PDF file has access to all fonts required.
If you don't have any "purchased programs", can I assume that you are using the free Adobe Reader, and you are actually using Publisher's own PDF export function? If so, you need to ask Microsoft for help. Acrobat is not involved in generating your PDF file.
How does one "embed" the fonts in the PDF file?
That is something that is specific to the PDF generating application, so you need to find out how Publisher does that.
A quick Google search turned up this: Embed fonts in a publication to ensure their availability - Publisher