: These mappings are not universal. Another PDF might map F1 to Times New Roman (if encoded as CID due to Unicode mapping). Always inspect the original font descriptor.
: Refers to "Character ID Fonts," a method for handling large character sets, such as those used in Asian languages or complex Unicode documents.
Demystifying CIDFont F1, F2, F3, F4, F5, F6: The Full Guide to Fixing Missing PDF Fonts
: Impossible for a full CJK font set. Conclusion : The fonts are not fully embedded, despite appearances. Check the object stream. Small file size = subset only.
Open your vector editing suite, select the broken text blocks, and manually change their typeface to the actual font discovered in step 4. cidfont f1 f2 f3 f4 f5 f6 full
Understanding "CIDFont F1 F2 F3 F4 F5 F6 Full": A Guide to PDF Font Issues
Save or export the document back to PDF format. Because the text is now read as a vector drawing, the system will never ask for font files. Best Practices to Prevent Font Corruption
Since you cannot download a "full version" of CIDFont F1–F6, use these professional workarounds to bypass the error and restore your document.
This article explains what these fonts are, why they appear, and how to fix the issue when you need the "full" rendering of the document. What is a CIDFont (F1-F6)? : These mappings are not universal
When software generates a PDF file, it often creates automated placeholders for the fonts used. Labels like are generic shorthand codes assigned by the PDF generator (such as Adobe InDesign, Illustrator, or an online converter) to differentiate between distinct font styles or weights. For instance: F1 : Might map to standard Arial. F2 : Might map to Arial Bold.
: Designate the individual font faces or weights used throughout the document. For example, CIDFont+F1 might map to Arial Bold, CIDFont+F2 to Arial Regular, and CIDFont+F3 to a specific italic variant.
Adobe-CNS1 Primary Use: Traditional Chinese as used in Taiwan, Hong Kong, and Macau.
Adobe-KR (Less common; often merged with F4 in modern use) Primary Use: Legacy or extended Korean character sets. : Refers to "Character ID Fonts," a method
Unlike traditional fonts (Type 1 or TrueType) that use a simple 1-byte encoding (maximum 256 characters), support large character sets—often thousands of glyphs—required for CJK languages (Chinese, Japanese, Korean) as well as complex symbol sets. Adobe developed CIDFonts to bypass the 256-character limit.
This comprehensive guide explains exactly what these fonts are, why they cause errors, and how to fix or replace them in your design workflow. What is a CIDFont (F1 to F6)?
: If you don't need to edit the text, you can "Place" or "Import" the PDF as an embedded image rather than opening it directly as an editable file.
: The "F" numbers typically refer to different font weights or styles (e.g., Bold, Italic, Regular) within the same document.
Select the profile and click Analyze and Fix .