

If you got creative with fonts and want the presentation you created to remain intact when opened by the recipient on another computer, you need to make sure that the fonts are embedded in the presentation. Custom fonts are automatically substituted with a standard font if the recipient’s computer (or website) doesn’t have the desired font installed. Thus, if you send a presentation with those fonts to a colleague, the text might not appear correctly.

Third-party fonts are not the embedded fonts used in a PowerPoint presentation by default.
