To help you get this resolved quickly, could you share (like Preview or Chrome) you are currently using to open the PDF, and whether the document contains Asian language characters ? Knowing this will help narrow down the fastest fix for your file. Share public link
However, searching for a direct download of CIDFont-F1 reveals a complex truth: CIDFont-F1 is not a standard, standalone commercial font like Arial or Helvetica. It is a technical font placeholder used during PDF generation. cidfont f1 font free download for mac extra quality
Locate the .otf or .ttf file you unzipped and select it to install. To help you get this resolved quickly, could
: CID (Character Identifier) fonts are a format developed by Adobe to handle large character sets, particularly for East Asian languages (Chinese, Japanese, and Korean). Placeholder Nature It is a technical font placeholder used during
created when a PDF is exported with missing or improperly embedded font data.