If the text is still not rendering, you can convert the "F1" text into vector outlines. Google Groups CIDFont+F1 issue - Adobe Community
Can't find CIDFont "HeiseiMin-W3". Substituting CIDFont /F1 with /Normal /Fixed. cidfont f1 normal fixed
/Distiller_CID_Fallback << /CIDFont /F1 /Normal /Fixed >> If the text is still not rendering, you
To get the most out of CIDFont F1 Normal Fixed, follow these best practices: /CIDFont /F1 /Normal /Fixed >
: Some software or online converters fail to properly decode these fonts during export, leading to corrupted text or "Font contains bad/Widths" errors. Quick Fixes :
: When software exports a PDF and cannot fully decode or embed the original font names, it assigns aliases like F1, F2, or F3 to track different styles or weights used in the document. Fixed/Normal Attributes
The exact string cidfont f1 normal fixed is most likely to appear in: