What is UFO?

UFO (Unified Font Object) is an open, XML-based font source format used by professional font editors for collaborative font development.

What is PFB?

PostScript Type 1 Binary (PFB) is a compact binary printer font format, more efficient than ASCII PFA for professional printing.

When Should You Use UFO vs PFB?

Use UFO When...

Reach for UFO when your priority is font design and editing, collaborative font development, glyphs/robofont — its uncompromising quality ensures every detail is preserved.

Use PFB When...

Reach for PFB when your priority is professional printing, legacy typesetting — its uncompromising quality ensures every detail is preserved.

UFO vs PFB: Key Differences

•UFO uses lossless compression while PFB uses lossless compression — both take the same approach to file size management.
•Since both UFO and PFB use lossless compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
•Transparency: N/A
•UFO files are typically 100KB to 10MB+ depending on glyph count while PFB files range 15-80KB per font, smaller than PFA
•UFO is optimized for font design and editing, collaborative font development, glyphs/robofont while PFB is designed for professional printing, legacy typesetting — choose based on your specific workflow needs

Advantages of UFO

✓UFO compresses data using lossless methods, keeping file sizes manageable for Font design and editing, collaborative font development, Glyphs/RoboFont.
✓Industry-wide support means UFO files open anywhere — from legacy systems to the latest devices.
✓Lossless quality makes UFO the gold standard for archival and master copies.
✓From professional software to open-source alternatives, UFO works out of the box.

Advantages of PFB

✓PFB applies lossless compression specifically calibrated for Professional printing, legacy typesetting.
✓PFB enjoys broad native support across operating systems, browsers, and creative tools alike.
✓PFB guarantees every bit of the original data survives — no approximations, no shortcuts.
✓You will find PFB support built into virtually every tool that handles Professional printing, legacy typesetting — no plugins or converters needed.

Common Use Cases for UFO to PFB Conversion

Mobile apps
Desktop publishing
E-book formatting
User interfaces
Marketing materials
Packaging design

Industry Applications

Desktop PublishingApp DevelopmentBrand DesignPrint ProductionUser Interface DesignDigital Marketing

Best Practices for UFO to PFB Conversion

→Converting UFO to PFB: check that glyph coverage is preserved — some formats have character limitations
→Use PFB for websites where file size matters
→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 UFO to PFB Conversion

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

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Convert to PFB →Convert from UFO →

Convert UFO to PFB Online - Free & Fast

Convert UFO files to PFB online for free. High-quality conversion with no registration required.

Font Converter

Upload or enter a URL to convert UFO to PFB instantly

Click to upload or drag & drop UFO file

or paste from clipboard

.ufo,.UFO (max 100MB)

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About UFO and PFB

UFO

UFO (UFO) - Unified Font Object, XML-based source format for font design and editing. Best for font design and editing, collaborative font development, glyphs/robofont.

PFB

PFB (PFB fonts) - PostScript Type 1 Binary, compact printer font format. Ideal for professional printing, legacy typesetting.

Format Comparison

CompressionLossless → Lossless

TransparencySupported

Use CaseConvert from font design and editing, collaborative font development, glyphs/robofont to professional printing, legacy typesetting

File Size~15-80KB per font, smaller than PFA after conversion

FAQs

Is converting UFO to PFB free?

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

How long does it take to convert UFO to PFB?

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

What is PFB best used for?

PFB is ideal for professional printing, legacy typesetting. PostScript Type 1 Binary, compact printer font format

What file size should I expect after converting UFO to PFB?

File size after UFO to PFB conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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