When users search for a , they are often looking for a way to make legacy PDFs display or print correctly. This article will explain exactly what these fonts are, why they appear, and—most importantly—how to legally acquire, replace, or download them for free.
https://support.adobe.com/en/faq/faq.html?id=kb:en_US:fa368e3b-f6f4-4b84-b3f2-44a5a8d39fb1:fa368e3b-f6f4-4b84-b3f2-44a5a8d39fb1 cid font f1 f2 f3 f4 f5 f6 f7 fonts free download link
Because these are generic names, there is no single "CIDFont F1" file to download. Searching for one often leads to untrustworthy sites. Instead, the PDF is looking for the When users search for a , they are