If the document is purely for internal draft review and typography does not matter, you can click "Continue." However, understand that font substitution will occur continue for every page. Do not export to PDF or send to a printer from this state.
All major browsers implement font fallback chains. For example, Chrome’s Blink engine on Windows has a hardcoded sequence: Arial → Segoe UI → Tahoma → Microsoft Sans Serif → sans-serif. For emoji, it calls Segoe UI Emoji. For CJK, it calls Microsoft YaHei (simplified Chinese) or Meiryo (Japanese).
Despite standardization efforts (CSS Fonts Module Level 4 with @font-face fallback), substitution remains unavoidable because: Font substitution will occur continue
5.1 Layout and Readability
5.2 Branding and Aesthetics
5.3 Accessibility and Internationalization
5.4 Performance and Bandwidth
5.5 Security Considerations
The system prompt “Font substitution will occur. Continue?” is a critical warning issued by operating systems, graphic design software (e.g., Adobe InDesign, Illustrator), or document processors (e.g., Microsoft Word, PDF readers) when a specified typeface is missing from the local environment. This report details the mechanics, risks, benefits, and best practices for responding to this prompt. If the document is purely for internal draft
Key Takeaway: Selecting "Continue" accepts a potentially significant alteration to the document’s visual identity, layout integrity, and readability.