Embedding fonts stores the necessary font files within a document itself. This ensures the text displays correctly, using the intended fonts, even on devices where those specific fonts aren't installed. Without embedding, if a recipient lacks a font, their computer substitutes a different one, often altering the layout and visual design.

Common applications include PDF and Microsoft Word documents. Marketing professionals embedding unique branding fonts within PDF reports guarantee consistent appearance when shared with clients. Similarly, a graphic designer sending a Word document template to a printer would embed custom typefaces to avoid unexpected formatting changes during printing, preserving the intended typography.

Key advantages are design consistency and predictable layouts across recipients. However, embedded fonts increase file size significantly. Crucially, ensure font licenses permit embedding; not all fonts legally allow this, and font licenses are often specific to the embedding context (e.g., viewing vs. editing). Future fonts might include smarter embedding permissions within software.