If you are trying to open the file in and getting a font error:
: If you see an error for "Cidfont-f6," it means the original font (which could be anything from Arial to a custom CAD font) was only partially embedded, and your current software cannot find the original source to display the text. How to Fix the "Missing Cidfont-f6" Error Cidfont-f6 Font Free Download
Be extremely cautious of websites claiming to offer a "Cidfont-f6.ttf" or "Cidfont-f6.otf" free download. If you are trying to open the file
This turns the text into shapes, allowing you to see the design without needing the "Cidfont-f6" file. Cidfont-f6 Font Free Download
If you just need to read the document, most PDF readers will automatically substitute a missing font with a standard system font.