Does converting EOT to OTF reduce quality?

Converting Embedded OpenType to OpenType Font preserves all font data including outlines, glyphs, and metrics. The conversion maintains the integrity of your font while adapting it for the target format.

What file size reduction should I expect?

File size changes depend on the specific conversion from Embedded OpenType to OpenType Font. OPENTYPE FONT files may be larger or smaller depending on the format's structure and metadata.

Do OTF fonts work in all browsers?

OTF fonts are supported by all modern operating systems and browsers for desktop use. For web use, consider converting to WOFF or WOFF2.

Will my font's OpenType features work after conversion?

Yes, all OpenType features are preserved during conversion. This includes ligatures, kerning pairs, alternate glyphs, small caps, and other advanced typography features. The conversion process adapts the container format while preserving all font data.

Can I convert commercial/licensed fonts?

You can convert commercial fonts for testing purposes, but you must purchase the appropriate web font license before using them on a live website. Font licenses are format-specific – a desktop license for one format doesn't automatically grant web usage rights. Always check your license agreement or contact the foundry.

How is EOT different from OTF?

Embedded OpenType (EOT) is a font format with specific use cases. OpenType Font (OTF) is a professional format with advanced typography. Choose based on your target platform and requirements.

What's the best format for my use case?

For web use, convert to WOFF2 or WOFF instead. For desktop applications or print, OTF may be appropriate. Always check the requirements of your target platform.

Can I convert variable fonts?

Yes, variable fonts can be converted between formats while preserving all variation axes and design space. The conversion maintains the font's interpolation capabilities. Ensure your target browsers support variable fonts (Chrome 62+, Firefox 62+, Safari 11+).

EOT

OTF

EOT to OTF Converter

Convert Embedded OpenType to OpenType Font. 50 MB file size, unlimited uploads. Fast, secure, and completely private conversion.

EOT to OTF50 MB File Size100% Free ForeverFastPrivateInstant Processing

Upload Fonts

Drag and drop your font files here or click to browse

Only EOT files are accepted

Choose Files

Max file size 50 MB.

I confirm that I have the rights to convert these fonts and agree to the Terms & Conditions.

Disclaimer: This tool is provided as-is for convenience and does not constitute legal advice. Font licenses vary; you are responsible for ensuring you have the rights to upload and convert files and that your intended use is permitted. Converting a font does not grant new rights. Results may be imperfect, and use is at your own risk.

Developer & Verifier

Developed by

Marcus Rodriguez

Lead Developer

Verified by

Sarah Mitchell

Product Designer, Font Specialist

Convert Any Font Format

Universal Font Converter

Convert to OTF Format

Any Font to OTF

About This Conversion

Everything you need to know about converting between these formats

Source Format

Embedded OpenType

Embedded OpenType (EOT) is a Microsoft format primarily used for older Internet Explorer browsers (IE6-IE8). It includes DRM features but is largely obsolete with modern browsers supporting WOFF/WOFF2.

Target Format

OpenType Font

OpenType Font (OTF) is an extension of TrueType, offering advanced typographic features like ligatures and alternate glyphs. It supports more characters and is preferred for professional design work due to its superior font rendering capabilities.

Why Convert EOT to OTF?

Professional design work requiring advanced typography

Accessing extended character sets and ligatures

Desktop publishing with sophisticated font features

Creating high-quality print materials

How to Convert EOT to OTF

Simple 3-step process that takes less than a minute

Upload Your Font

Select your EOT font file from your computer or drag and drop it into the converter above.

Convert Instantly

Click the convert button and our tool will process your font file in server RAM only. Files are processed and immediately deleted - never written to disk.

Download Result

Your converted OTF file will be ready immediately. Download it and use it in your project.

EOT vs OTF: Feature Comparison

Technical comparison between source and target formats

Feature	EOT	OTF	Winner
File Size	130 KB	180 KB (+38%)	EOT
Browser Support	IE6-11 only	Limited	Neither
Desktop Support	None	Universal	OTF
Modern Systems	None	Full support	OTF
User Coverage 2024	<0.01%	Universal	OTF
Best For	Nothing (obsolete)	Desktop applications	OTF

Frequently Asked Questions

Common questions about converting EOT to OTF

1Why convert EOT to OTF instead of TTF?

Usually you shouldn't. EOT typically contains TrueType outlines, so TTF is the natural conversion target. Only convert to OTF if: (1) The original font was OTF-based, (2) Client specifically requires OTF, or (3) You need OTF for specific software compatibility.

2Will file size increase converting EOT to OTF?

Yes, significantly. A 100KB EOT becomes approximately 130-160KB as OTF. OTF has more metadata overhead than TTF. If you need desktop fonts from EOT, convert to TTF instead – it's 10-30% smaller with identical functionality.

3Does OTF preserve features better than TTF from EOT?

No. Since EOT has limited OpenType support to begin with, converting to OTF doesn't add features. Both TTF and OTF will have the same features (whatever was in the EOT). TTF is the better choice: smaller, broader compatibility.

4Can I use converted OTF on websites?

Don't use OTF directly on websites. After converting EOT to OTF, convert to WOFF2 for modern web use. Or better yet, convert EOT → TTF → WOFF2. This gives you proper web optimization instead of uncompressed desktop formats.

5Will the converted OTF work in all software?

Yes, OTF has broad desktop support. However, TTF has even broader support, especially in older software. Unless you specifically need OTF format, TTF is the safer conversion target from EOT.

6Does converting EOT to OTF improve quality?

No. Quality is determined by the source font design, not the container format. EOT, TTF, and OTF can all contain identical font data. Converting EOT to OTF just changes the wrapper – it doesn't improve the font design or rendering.

7Should I convert EOT to OTF or TTF for desktop use?

Convert to TTF. It's 10-30% smaller than OTF, has broader compatibility, and works identically in modern applications. Only choose OTF if you have a specific requirement for that format. For general use, TTF is superior.

8What's the best modern format after converting from EOT?

For desktop: Convert to TTF. For web: Convert EOT → TTF → WOFF2 (with WOFF fallback). This modernizes your font stack with proper compression and broad compatibility. Discard the EOT unless you absolutely need IE6-8 support.

File Size Comparison

See how file sizes change after conversion

Original (EOT)	Converted (OTF)	Change	Notes
130 KB (EOT)	180 KB (OTF)	+38% larger	Decompression + OTF overhead
245 KB (EOT)	350 KB (OTF)	+43% larger	OTF larger than TTF equivalent
75 KB (EOT)	100 KB (OTF)	+33% larger	Consistent expansion
480 KB (EOT)	700 KB (OTF)	+46% larger	Large files expand most

Performance Metrics

Technical performance indicators for this conversion

File Size Increase:+35-46% larger
Decompression + OTF overhead
Modernization Benefit:Cross-platform
OTF works everywhere; EOT nowhere on modern systems
Desktop Performance:Excellent
OTF performs perfectly in desktop apps
Compatibility Gain:+100% platforms
OTF works everywhere; EOT nowhere
Application Load Time:<100ms
Local fonts load instantly
Recommendation:Use TTF instead
TTF 10-30% smaller than OTF with same functionality

Implementation Examples

Production-ready code for your converted fonts

Desktop Font Installation

Installing OTF fonts on your system

/* OTF Font Installation Instructions
   * 
   * Windows:
   * 1. Right-click the otf file
   * 2. Click "Install" or "Install for all users"
   * 3. Font available in all applications
   *
   * macOS:
   * 1. Double-click the otf file
   * 2. Click "Install Font" in Font Book
   * 3. Font available system-wide
   *
   * Linux:
   * 1. Copy otf file to ~/.fonts/ or /usr/share/fonts/
   * 2. Run: fc-cache -f -v
   * 3. Font available in all applications
   *
   * Use in applications:
   * Select font from dropdown in:
   * - Photoshop, Illustrator, InDesign
   * - Word, PowerPoint, Excel
   * - Any desktop application
   */

Browser Compatibility

Which browsers support OTF fonts

Browser	Support	Notes
Desktop Use	N/A	OTF is for desktop applications, not web browsers
Windows	All versions	Full OTF support after conversion from EOT
macOS	All versions	Full OTF support after conversion from EOT
Linux	All distros	Full OTF support in modern Linux
Applications	Universal	Modernized desktop fonts from legacy EOT

Troubleshooting Common Issues

Solutions to problems you might encounter

File size increased dramatically

EOT uses compression; OTF doesn't. Additionally, OTF has 10-30% more overhead than TTF. A 100KB EOT becomes approximately 130-160KB as OTF (30-60% larger). For desktop fonts, convert to TTF instead – it's smaller and more compatible.

Why convert to OTF instead of TTF?

Usually you shouldn't. EOT contains TrueType outlines, so TTF is the natural target. Only convert to OTF if client specifically requires that format. TTF is 10-30% smaller with identical functionality for EOT-based fonts.

DRM/license protection prevents conversion

EOT includes Microsoft's DRM system. Some fonts are locked to prevent extraction. Check the original font license. Commercial fonts often require web licenses and prohibit converting EOT back to desktop formats without authorization.

OpenType features missing or broken

EOT has limited OpenType support. Features may not have been properly embedded originally. After converting to OTF, you can add features using font editing software, but the original EOT might not have had them.

OTF doesn't work in some software

Some older software has better TTF support than OTF. Try converting EOT to TTF instead. TTF has broader compatibility, especially with older applications. For modern software, both work but TTF is smaller.

When NOT to Use OTF

Scenarios where you should keep EOT or choose a different format

File size matters
Why not: OTF is 20-30% larger than TTF with no benefits
Use instead: Convert EOT to TTF instead of OTF (smaller, more compatible)
Web deployment
Why not: OTF is uncompressed and larger than WOFF2/WOFF
Use instead: For web: convert EOT to WOFF2 + WOFF, not OTF
Maximum compatibility
Why not: TTF has broader support than OTF in older software
Use instead: Convert to TTF instead of OTF for desktop

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