If you can view the text but cannot print it, you can force the system to flatten the fonts. Open the PDF file in your viewer or browser. Click (Ctrl+P or Cmd+P).
These are not usually specific brand names like "Arial" or "Helvetica." Rather, they are generic placeholders or internal PDF font instances . F1 is often the primary font (e.g., a standard serif). cid font f1 f2 f3 f4 free download link
(Character Identifier fonts) are a type of PostScript font structure developed by Adobe to handle character sets with thousands of glyphs, such as Japanese, Chinese, and Korean (CJK). If you can view the text but cannot
If you are building documents in Adobe InDesign or Microsoft Word and exporting them to PDF, ensure your viewers never run into this issue: These are not usually specific brand names like
Your PDF viewer has a full or corrupted font cache folder.
Because these are generic labels, "CIDFont F1" in one file might be Arial, while in another it could be Times New Roman. Why You See "CIDFont F1-F4"