Convert TTF to AFF

Understanding ttf and aff file formats

TTF (TrueType Font) is a widely used font file format developed by Apple and Microsoft. It contains both the screen and printer font data, making it ideal for consistent text rendering across platforms. TTF files are commonly used in operating systems, graphic design, and publishing.

AFF (Acorn Font File) is a font format used primarily on Acorn computers and RISC OS systems. It stores bitmap or outline font data in a structure compatible with these legacy systems. AFF files are less common today and are mainly used for retro computing or emulation purposes.

How to convert ttf to aff

Converting a TTF file to an AFF file is a specialized task, as AFF is not widely supported by mainstream font editors. The process typically involves converting the TTF to an intermediary format and then to AFF, or using dedicated tools for RISC OS font management.

Recommended software for ttf to aff conversion

• FontForge: An open-source font editor that can import TTF files and export to various formats. While it does not natively support AFF, you can export to a format compatible with RISC OS tools (such as BDF or FON), then use RISC OS utilities to convert to AFF.
• RISC OS Font Utilities: Tools like FontEd or FontConvert on RISC OS can import intermediary formats and export to AFF.

Step-by-step conversion process

1. Open your TTF file in FontForge.
2. Go to File → Export and choose a compatible format (such as BDF).
3. Transfer the exported file to a RISC OS environment.
4. Use FontEd or FontConvert to import the file and export it as an AFF file.

Tips and considerations

• Ensure you have access to a RISC OS emulator or hardware for the final conversion step.
• Font metrics and hinting may not be perfectly preserved during conversion; manual adjustments may be necessary.
• Always keep backups of your original TTF files before conversion.