Under the or Output settings of your PDF export menu, look for the Fonts section.
Note: This makes the text un-editable and un-searchable, so save a backup copy of your original file first. 3. Update Your Print-to-PDF Drivers
: Check the Document Properties in Acrobat; sometimes the "Actual Font" or "Original Font" name is still hidden in the metadata.
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pdfwrite \ -sOutputFile=output.pdf \ -dSubsetFonts=false \ -dEmbedAllFonts=true \ input.pdf
Languages like English or Spanish use relatively small alphabets. A standard font file only needs to hold 128 to 256 characters. cid font f1 f2 f3 f4
: If you try to edit text and see "CIDFont+F1," your system cannot find the original font file.
The letters are internal tags or font handles used by PDF creators (like Adobe Acrobat, InDesign, or PDFlib). They are not the actual name of the font (e.g., "SimHei" or "Kozuka Gothic Pro").
This technical jargon often appears when your software or printer encounters a rendering roadblock. While it looks like a cryptic programming error, it points to a very specific issue regarding how modern computer systems handle, embed, and display digital typefaces.
Understanding CID Fonts (F1, F2, F3, F4) in PDF Documents: A Comprehensive Guide Under the or Output settings of your PDF
is a font encoding technology developed by Adobe to support large and complex character sets. Unlike standard Western fonts (which typically support about 256 characters), CID fonts can handle up to 65,535 separate characters . This makes them essential for:
When working with PDFs (e.g., in Adobe Acrobat Pro, Ghostscript, or custom renderers), you may encounter errors like:
Demystifying "CID Font F1, F2, F3, F4": What It Means and How to Fix It
If you see these labels in your font list (under in Acrobat), they usually represent different styles or weights of the same typeface used in your document: Placeholder Common Mapping Example F1 Arial (Bold) F2 Arial (Regular) F3 A third variant, such as Italic or a secondary font F4 Often assigned to specialized glyphs or ligatures Update Your Print-to-PDF Drivers : Check the Document
To understand the "F1 F2 F3 F4" labels, it helps to first understand the core architecture of an . Impossible fonts to be found / Fontes impossíveis de achar
Instead of using names like "A" or "B," each glyph is identified by a simple integer called a . This system allows for highly efficient encoding: the font file contains the actual visual data, while a separate "CMap" resource acts as a translator, mapping specific character codes (like Unicode) to their respective CIDs.
: If the text looks like blocks or gibberish, the character mapping (CMap) may be broken.
The font’s character collection definition is incomplete.
Open the file in and select File > Export as PDF .