Open the file in and select File > Export as PDF .
When you embed a CID font in a PDF, the subset might be labeled internally as F1+ , F2+ , etc. If a PDF processor cannot read the original CMap, it may fall back to these generic F1-F4 placeholders. cid font f1 f2 f3 f4
When working with PDFs (e.g., in Adobe Acrobat Pro, Ghostscript, or custom renderers), you may encounter errors like: Open the file in and select File > Export as PDF
