Open the PDF in Adobe Acrobat. Go to tab. Note the actual font names the placeholders are trying to represent. You can then attempt to find a match in your font library.
For example, a user reported that in their specific PDF, "CIDFont+F1" was mapped to and "CIDFont+F2" to an unidentified bold serif font. Another user asked, "Does anybody know what CIDFont+F3 is?" which highlights the confusion. These names are temporary and context-dependent, not a universal standard. Cid Font F1 F2 F3 Free Download
While many professional fonts are expensive, you can often find free versions of popular fonts. Here are the best ways to secure a : 1. Dedicated Free Font Websites Open the PDF in Adobe Acrobat