Impossible fonts to be found / Fontes impossíveis de achar
Using a tool like qpdf or cPDF , you can re-embed an updated version of the font: cidfontf1 f2 f3 f4 f5 f6 updated
The key is never to use the generic F1–F6 as final identifiers. Impossible fonts to be found / Fontes impossíveis
If your report shows these fonts as "missing" or if the text appears as dots or garbled characters, try these common fixes: Open and Re-export : Open the PDF in a viewer like macOS Preview File > Export as PDF when default fallback tables were rewritten.
For users still seeing "cidfontf1 not found" errors this year: the fix is to update your Adobe Reader or Ghostscript to versions released after June 2024, when default fallback tables were rewritten.