: The underlying font assigned as "F1" is usually a standard system font like Arial , Times New Roman , or Helvetica . 2. Why Does the CIDFont+F1 Error Happen?
Legacy versions of Cid Font F1 Normal were distributed as (CID-keyed) or OpenType-CID . Modern implementations convert to TTF/OTF with a custom cmap table.
Many users have found that mapping "F1" back to Arial or Roboto fixes the formatting, as these are the most common fonts substituted by export engines.
The specific string "Cid Font F1 Normal" is almost exclusively found inside the internal structure of a PDF file. It is not usually the name of a commercial font you can download or buy.
: While the name "F1" is arbitrary, it often maps to common system fonts like Arial Bold , Times New Roman Regular , or Tahoma depending on the source file.
