“Embedding fonts” ensures that all of the font information used to make your document look the way it does is stored in the PDF file. So, no matter what fonts a reader has on their computer, they'll be able to see the file as you intended it to be seen. If you don't embed fonts, Adobe AcrobatTM or an equivalent PDF creator will make its best guess at font substitution using whatever fonts are available on the reader's computer. Substitution can result in significant differences between your intended output and can also lead to gaps in text or original words being replaced with other symbols when your book is printed, so it is best to have the fonts embedded.
How to Embed Fonts:
1. Within MS Word click File “Save As”
2. From the “ Save As Type” drop down menu choose “PDF”
3. Click on “Options
4. Under “PDF Options” check off “ISO 19005-1 compliant (PDF/A)”
5. Click “OK” to create the PDF
6. Fonts are now embedded
