Letters appear as empty boxes, symbols, or incorrect characters.
Understanding CID Font F1 Normal: A Comprehensive Guide to Complex PDF Font Mapping
Use the Preflight tool in Adobe Acrobat Pro. Run a preflight check that includes an option to audit and fix font problems. If that fails, you may need to use a dedicated PDF repair tool or consider the outlining method below. Cid Font F1 Normal
Is the text displaying as , gibberish characters , or throwing an error message when printing? Share public link
Ensure you have the latest version of your PDF viewer. Adobe regularly updates its CJK font packs to resolve missing CID font bugs. Letters appear as empty boxes, symbols, or incorrect
This font designation often appears when creating PDFs from applications like Microsoft Word, Adobe InDesign, or reporting tools (like SAP or Oracle reports).
CID-keyed fonts are a specific type of font format designed to handle massive character sets, particularly Asian languages (Chinese, Japanese, Korean—collectively known as CJK). Instead of mapping a character code to a character name, CID fonts map character codes directly to a glyph index (a numerical ID for the character's shape). If that fails, you may need to use
Ensure that or Embed subsets when percentage of characters used is less than 100% is checked.