You can use this for a blog post, FAQ section, or product description on a font website. If you’ve ever downloaded a free font, opened a design project, and seen a pop-up warning that says "Substitution will occur," you’re not alone. This message can be confusing, but it’s actually a helpful safeguard—not a sign that your font is broken. What Does "Substitution Will Occur" Mean? In simple terms, the message means: "The font you are trying to use is missing some of the characters or styles required for this document. Your software will temporarily replace the missing parts with a different font."
When in doubt, preview all the characters before you download. A truly useful free font is one that works without substitutions.
