: This is the best solution. Note the name of the missing font from the error message, find it online (or ask the original designer for it), and install it on your computer. On Windows : Right-click the font file and select Install . On Mac : Double-click the font file and select Install Font .
Imagine a marketing manager named Sarah. She receives a brochure from an external agency. The agency used Futura Now and Chronicle Display . Sarah opens the file on her corporate laptop, sees and clicks "Continue" because she is in a hurry. Font substitution will occur continue
The message "Font substitution will occur. Continue?" is a common alert in design and productivity software (like Adobe Illustrator After Effects : This is the best solution
| Type | Description | Example | |------|-------------|---------| | | User is not notified; happens automatically. | Browser replaces missing Arial with Nimbus Sans. | | Explicit substitution | System specifies which fallback font is used. | CSS font-family: "Helvetica", sans-serif; | | Algorithmic substitution | The renderer synthesizes a missing glyph or matches metrics. | Adobe InDesign’s Multiple Master fallback. | | Glyph-level substitution | Only one character replaced, rest of string keeps original font. | '€' missing → taken from another font. | On Mac : Double-click the font file and select Install Font
: Moving a document between a Mac and a PC or between different workstations. Missing System Fonts
In Adobe InDesign, never send just the .indd file. Go to . This copies the document, all linked images, and all used font files into a single folder. The recipient can then install those fonts instantly, and the warning "Font substitution will occur continue" will never appear.