Downloading a CID-compatible version of a standard font usually resolves these issues by providing the mapping data your computer needs to interpret the characters.
Understanding CID Font F1: How to Handle and "Download" It for PC cid font f1 download for pc
Installing the font is only half the solution. You must tell your application to use the new font instead of the missing "F1." Downloading a CID-compatible version of a standard font
Always use open-source alternatives. If you must use the exact proprietary font, purchase it from: cid font f1 download for pc
The PDF’s internal font dictionary is damaged. Fix: Use Ghostscript to re-encode the PDF: