What is PCF?

Portable Compiled Format (PCF) is the compiled binary version of BDF bitmap fonts for efficient X11 font rendering.

What is TTC?

TrueType Collection (TTC) bundles multiple TrueType fonts into a single file, commonly used for CJK (Chinese, Japanese, Korean) font families.

When Should You Use PCF vs TTC?

PCF vs TTC: Key Differences

• •PCF uses lossless compression while TTC uses lossless compression — both take the same approach to file size management.
• •Since both PCF and TTC use lossless compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
• •Alpha channel support: TTC lacks transparency support.
• •File sizes: PCF files typically range Smaller than BDF for same font and TTC files 5-30MB for CJK font collections.
• •Primary audience: PCF is built for x11 system fonts, linux console fonts scenarios, while TTC focuses on font distribution, cjk font collections — pick the format that matches your output requirement.

Advantages of PCF

• ✓At its core, PCF relies on lossless encoding — a design choice that makes it perfect for X11 system fonts, Linux console fonts.
• ✓You won't run into compatibility issues with PCF — it's a universal standard across platforms.
• ✓File size management with PCF: larger files guaranteed to match the original exactly.
• ✓Every major application in the X11 system fonts, Linux console fonts space supports PCF natively.

Advantages of TTC

• ✓TTC uses lossless compression tailored for Font distribution, CJK font collections.
• ✓TTC is supported natively on virtually every device, browser, and operating system.
• ✓TTC files are bit-for-bit perfect, preserving every pixel and sample for professional work.
• ✓TTC integrates seamlessly with all major creative tools and workflows.

Common Use Cases for PCF to TTC Conversion

• Marketing materials
• Packaging design
• Signage systems
• Icon sets
• Logo design
• Data visualization

Industry Applications

Best Practices for PCF to TTC Conversion

• →Converting PCF to TTC: check that glyph coverage is preserved — some formats have character limitations
• →Use TTC for cross-platform compatibility
• →Test fonts across different browsers and operating systems after conversion
• →Always keep a backup of your original files before converting
• →Choose the appropriate quality settings for your specific use case

Troubleshooting PCF to TTC Conversion

• !The converted TTC font has incorrect metrics → advance width and kerning values may differ between formats despite identical glyphs
• !TTC file looks heavier or lighter than PCF → font rendering engines handle weight and anti-aliasing differently per format
• !OpenType features (ligatures, swashes) lost after conversion to TTC → verify the target format supports advanced typographic features
• !Variable font axes missing from the converted TTC → variable font support varies significantly between formats

Related Font Converters

All Font Formats

More Font tools