To fix your document, you need to identify what the original font was and replace it with a standard equivalent. Why You See "CIDFont+F1" to "F7"
When a PDF is created, the software (like InDesign or Word) tries to "embed" the fonts so they look the same on every computer. If the embedding fails or is restricted, the PDF viewer assigns generic labels like . cid font f1 f2 f3 f4 f5 f6 f7 fonts free download link
Usually represent other weights (Italic, Light, Heavy) or special characters within the same font family. How to Fix Missing CID Fonts (Step-by-Step) To fix your document, you need to identify
This often forces the system to re-map the generic CID names back into readable system fonts like Arial. 2. Replace with Standard Substitutes To fix your document