You cannot download "F1." You must find out what "F1" represents.
Type STYLE in the command line → Create a new text style → Assign the downloaded CID font to replace the missing F1–F4 styles. cid font f1 f2 f3 f4 free link download
Adobe released its own open-source CID fonts: and Source Han Serif . You cannot download "F1
: Open the PDF in the Mac Preview app and then Export as PDF . This often re-renders the file and fixes placeholder font issues. we will explain:
In this article, we will explain: