Since you can't download it, use these workarounds to view or edit your document:
Typically, in font naming conventions, "f4" denotes the weight or version number. "f4" often means "Font 4" or a fourth iteration of the design family, generally a semi-bold or bold variant. Cidfont-f4 Font Free Download
If Adobe is struggling, browser-based viewers or alternative software often handle font substitution better: Since you can't download it, use these workarounds
to select the text and manually change the font to a standard one like Arial or Times New Roman. Super User 2. Force Font Embedding (If you created the PDF) Since you can't download it
In Acrobat, select the text and manually change the font to a standard one like Arial , Helvetica , or Myriad Pro .
