If you are editing the file in Adobe Illustrator or Affinity Designer , use the "Find Font" or "Replace Font" feature. Swap CIDFont+F1 with Arial or Myriad Pro to restore the correct appearance.
CID (Character Identifier) fonts are a type of font technology developed by Adobe Systems. They are designed to support a large number of characters, making them particularly useful for languages with large character sets, such as Chinese, Japanese, and Korean (CJK). CID fonts are often used in PostScript printing and are compatible with various operating systems. cid font f1 f2 f3 download top