Open the file in Preview , go to File > Export as PDF , and save a new version. This often fixes the font mapping.
Understanding CIDFont+F1: Why Your PDF Has Missing Fonts If you have ever opened a PDF only to find the text replaced by dots or a frustrating error message saying you are not alone. Despite what some download sites might suggest, "CIDFont+F1" isn't a specific creative font you can simply download and install; it is usually a generic placeholder name for a font that wasn't properly embedded when the file was created. What is CIDFont+F1? cidfont f1normal font free download 2021