Five steps to make a non‑standard font travel with your file, so it renders correctly on any machine — even ones that don't have the font installed.
Embedding only captures a font that PowerPoint can already see. Locate the .ttf or .otf file, right‑click it, and choose Install.
Open View → Slide Master. On the Slide Master tab, click Fonts → Customize Fonts and set it as the Heading and/or Body font.
Back out of Slide Master, then go to File → Options → Save. Near the bottom, check Embed fonts in the file.
Once the checkbox is on, two sub‑options appear. Pick based on whether teammates need to keep editing text.
Click OK to close Options, then save with Ctrl + S. The font embeds into the .pptx at save time — there's no separate export step.