If you are trying to view a PDF and characters are missing or showing as dots, try these methods to "fix" the font issue: Export as a New PDF:
What are you using when you see this error (e.g., Chrome, Adobe, a specialized CAD program)? Are you trying to view a document or create/export one? What operating system (Windows, Mac, Linux) are you on? cidfont f1 f2 f3 f4 f5 f6 install
or "substitute" names created during the PDF export process. F1, F2, etc. If you are trying to view a PDF
"It always asks," Calder said. "Type resists being found. You must ask it to let you see. 'Install' is a start. Most people stop there." etc. "It always asks