What is EOT?

Embedded OpenType (EOT) is a compact font format developed by Microsoft for embedding fonts in web pages using IE.

What is CFF?

Compact Font Format (CFF) is a PostScript-based font format used in PDF documents and professional printing for efficient font storage.

When Should You Use EOT vs CFF?

Use EOT When...

Reach for EOT when your priority is legacy ie web fonts, older browser support — its efficient compression makes sharing fast and storage minimal.

Use CFF When...

Reach for CFF when your priority is professional printing, pdf fonts — its uncompromising quality ensures every detail is preserved.

EOT vs CFF: Key Differences

•EOT and CFF diverge on compression: lossy compression for the source, lossless compression for the target.
•Converting from EOT to CFF changes compression type: lossless source becomes larger but with full quality preservation.
•How transparency is handled: CFF supports transparency, so alpha information is preserved during conversion.
•File sizes: EOT files typically range Similar to WOFF, 30-50% smaller than TTF and CFF files 15-100KB per font.
•Use case fit: EOT targets legacy ie web fonts, older browser support and CFF targets professional printing, pdf fonts — your choice depends on which workflow stage you are serving.

Advantages of EOT

✓EOT applies lossy compression specifically calibrated for Legacy IE web fonts, older browser support.
✓EOT enjoys broad native support across operating systems, browsers, and creative tools alike.
✓EOT delivers impressive compression ratios, shrinking files dramatically while keeping visual quality high.
✓You will find EOT support built into virtually every tool that handles Legacy IE web fonts, older browser support — no plugins or converters needed.

Advantages of CFF

✓The lossless nature of CFF means file sizes stay reasonable while handling Professional printing, PDF fonts efficiently.
✓From mobile devices to enterprise servers, CFF is recognized and supported everywhere.
✓The trade-off for CFF's perfection is larger files — but for archival work, it is worth every megabyte.
✓CFF is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Common Use Cases for EOT to CFF Conversion

Website typography
Brand identity
Print design
Mobile apps
Desktop publishing
E-book formatting

Industry Applications

Web DesignTypographyGraphic DesignDesktop PublishingApp DevelopmentBrand Design

Best Practices for EOT to CFF Conversion

→Before converting EOT to CFF, review the font license — some licenses restrict format conversion
→Check hinting data after conversion: CFF may handle TrueType hinting differently than EOT
→Verify that all character sets (Latin, Cyrillic, CJK, etc.) survived the conversion intact
→Test the converted font in both a browser and a desktop application
→Keep the original font file in case the conversion alters spacing metrics

Troubleshooting EOT to CFF Conversion

!CFF font doesn't render correctly → check if CFF supports all glyphs present in EOT
!Licensing restrictions after EOT to CFF conversion → verify the font license allows format conversion
!Hinting data lost converting EOT to CFF → some font formats like CFF may not preserve TrueType hinting
!Special characters missing from converted CFF → font subsetting may have removed unused glyphs

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Convert EOT to CFF Online - Free & Fast

Convert EOT files to CFF online for free. High-quality conversion with no registration required.

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About EOT and CFF

EOT

EOT (EOT fonts) - Embedded OpenType, Microsoft IE webfont format. Best for legacy ie web fonts, older browser support.

CFF

CFF (CFF fonts) - Compact Font Format, PostScript-based font outlines. Ideal for professional printing, pdf fonts.

Format Comparison

CompressionLossy → Lossless

TransparencySupported

Use CaseConvert from legacy ie web fonts, older browser support to professional printing, pdf fonts

File Size~15-100KB per font after conversion

FAQs

Is converting EOT to CFF free?

Yes, GoConvertFile offers free conversion of EOT to CFF for files up to 100MB. No registration required.

How long does it take to convert EOT to CFF?

Most EOT to CFF conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is CFF best used for?

CFF is ideal for professional printing, pdf fonts. Compact Font Format, PostScript-based font outlines

Does converting EOT to CFF lose quality?

No, converting EOT to CFF does not cause additional quality loss â€” CFF uses lossless compression. However, any artifacts already present in the original EOT file will persist in the CFF output.

What file size should I expect after converting EOT to CFF?

CFF files are typically 2-5x larger than equivalent EOT files because CFF preserves all pixel data. This is expected and necessary for lossless quality.

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