This refers to a resource dictionary entry usually defined as:
When software generates a PDF, it often optimizes the file size by subsetting the fonts used. Instead of saving the actual font name (like MS Mincho or Batang ), the PDF generator renames them using generic internal placeholders: F1, F2, F3, F4, F5, F6, and F7 . These are internal aliases pointing to specific character sets required to render that exact document. Why Do You See the Error? cid font f1 f2 f3 f4 f5 f6 f7 fonts free download link
: In Adobe Acrobat, go to Tools > Print Production > Preflight . Select the "wrench" icon and choose Embed missing fonts to fix the file. This refers to a resource dictionary entry usually
Once you have the real name (e.g., HeiseiKakuGo-W5 ), search for that font legally. Why Do You See the Error
This automatically adds missing localized CID rendering engines to your reader. 2. Print the PDF as an Image