Cidfont-f1 F2 F3 F4 F5 F6 ((better))
When you see names like CIDFont+F1, F2, through F6 in a PDF's properties or in an error message, you are looking at "virtual" fonts created during the PDF export process. These are not standard fonts you can download from a website; rather, they are internal references generated by software like Adobe InDesign, Illustrator, or Microsoft Print to PDF. What These Font Names Mean
How to Select the Right Variant
- Use F2 – if you only need English, boot messages, or a crash-safe terminal.
- Use F3 – for numeric data logging, SCADA systems, or lab equipment displays.
- Use F4 – when deploying HMIs in multilingual regions (e.g., Western/Eastern Europe, parts of the Middle East with extended Latin).
- Use F5 – in low-light, high-stakes environments (cockpits, ship bridges, emergency dispatch).
- Use F6 – when interfacing with older VT-series terminals or simulation hardware that expects double-byte drawing characters.
CidFont is a font system developed by Adobe Systems Incorporated for multilingual typography. It uses a CID (Character Identifier) keying system to represent characters in various languages. The CidFont system consists of several font formats, denoted as F1, F2, F3, F4, F5, and F6. Cidfont-f1 F2 F3 F4 F5 F6
"CIDFont": Indicates the encoding method used to support large character sets (common in CJK languages or complex OpenType fonts). When you see names like CIDFont+F1 , F2
There are three main reasons why your PDF is showing "Cidfont-f1" instead of actual text: 1. Missing Embedded Fonts Use F2 – if you only need English,