If you own Adobe Acrobat Pro, you can force the document to embed the missing font structures: Open the menu and select Print Production . Click on Preflight .
name type encoding emb sub uni object ID ----------- ------------ ------------ --- --- --- --------- F1 CID Type 0 Identity-H yes yes yes 12 0 F2 CID Type 2 UniJIS-UCS2-H yes yes yes 14 0
Seeing errors containing CIDFont+F1 , CIDFont+F2 , CIDFont+F3 , or CIDFont+F4 usually indicates that your PDF viewer or graphic design application cannot find the actual font metrics required to render, print, or edit the text properly.
Today's standard for digital fonts is , but CID technology is not a relic. In fact, modern OpenType CJK fonts, like Adobe's Source Han Sans/Serif (also known as "Noto Sans/Serif CJK"), are built on a CID-based foundation. cid font f1 f2 f3 f4
When a PDF is created from software like Adobe InDesign, Illustrator, or Microsoft Word (with Asian language support), the text is often embedded or referenced as a CID font. This ensures:
Last updated: October 2025 – Compatible with PDF 2.0 and ISO 32000-2.
Subsequent fonts identified in the document, which could be bold variants, italic variants, or completely different typefaces used for headers, subtitles, or special characters. If you own Adobe Acrobat Pro, you can
When working with PDFs (e.g., in Adobe Acrobat Pro, Ghostscript, or custom renderers), you may encounter errors like:
If you are struggling with a "CIDFont+F1 missing" error, try these solutions from Smallpdf and Adobe Community : CID+ Fonts - Adobe Community
Change your printer destination to or Microsoft Print to PDF . Click Print and save the new file under a different name. Today's standard for digital fonts is , but
If you frequently generate documents for clients, use these best practices to ensure they never see an F1 or F2 error:
To prevent this error from appearing in the future, you must ensure that fonts are embedded when you create the PDF. In tools like Adobe InDesign or Word (when using "Save as Adobe PDF"), look for font settings and select options like "Embed all fonts" . Properly embedding the fonts ensures that the reader can see the text exactly as you intended.
