This is the most reported "magic fix" in the Adobe Community : Open the problematic PDF in the app. Go to File > Export as PDF .
tab. Look for "CIDFont+F1" in the list; sometimes the "Original Font" name is listed right next to it. Use the Object Inspector : In Acrobat Pro, go to Tools > Print Production > Output Preview Object Inspector Cid Font F1 F2 F3 Download -
If you are using Adobe Reader, visit the official Adobe website and download the . This is the most reported "magic fix" in
are a technical format developed by Adobe. They are designed to handle complex languages that feature massive character sets (thousands of unique glyphs), such as Chinese, Japanese, and Korean (CJK). Instead of mapping characters to standard encoding tables, they use a numeric Character Identifier to pinpoint the exact visual shape (glyph) needed. Why Do They Look Like "F1, F2, or F3"? Look for "CIDFont+F1" in the list; sometimes the