Fonts

TTF → OTF

Convert your TrueType fonts to OpenType for enhanced typographic capabilities and broader compatibility. This conversion is ideal for designers and publishers seeking advanced font features.

TrueType (TTF) fonts primarily use quadratic Bézier splines for glyph outlines, offering a straightforward structure. OpenType (OTF) is a more advanced format developed by Adobe and Microsoft, capable of containing either TrueType or PostScript outlines. The key difference lies in OTF's robust support for advanced typographic features like ligatures, stylistic sets, and contextual alternates, which are stored in OpenType layout tables. Converting TTF to OTF typically involves re-packaging the existing TrueType outlines within an OpenType wrapper, allowing for the potential addition or activation of these sophisticated features.

The geometric outlines of your glyphs from TTF are generally preserved during conversion to OTF, meaning no loss in visual fidelity of the characters themselves. Any perceived quality change comes from the potential activation of OpenType features, not from outline degradation.

Tips

Verify the font's license allows conversion to ensure compliance.
Test the converted OTF in your target applications to ensure all features function as expected.
Consider if the original TTF contains any OpenType features that will be carried over or if you plan to add them post-conversion.
Always keep a backup of your original TTF file before converting.

Common use cases

Preparing fonts for professional desktop publishing software that leverages OpenType features.
Consolidating a font library to prefer the more feature-rich OpenType format for consistency.
Ensuring broader cross-platform compatibility where OTF might be preferred over TTF.
Facilitating the future addition of advanced typographic features to existing TrueType outlines.

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Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.

File formats: what to choose

A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.

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Fonts

Typefaces for websites, design, and documents.

Common extensions: TTF, OTF, WOFF, WOFF2

Advantages

+ WOFF2 is ideal for fast web loading
+ OTF supports advanced typography features
+ TTF works across desktop apps

Disadvantages

− License restrictions may limit conversion or embedding
− Hinting can differ between formats
− Variable font axes may be lost in conversion

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Images

Raster and vector graphics for web, print, and photography.

Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF

Advantages

+ WebP and AVIF offer excellent compression for the web
+ PNG keeps transparency and sharp edges
+ SVG scales without quality loss

Disadvantages

− RAW and TIFF files are large and slow to share
− JPEG loses quality on every re-save
− Some formats are not supported in older browsers

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Documents

Office files, PDFs, ebooks, and plain text.

Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT

Advantages

+ PDF locks layout for printing and sharing
+ DOCX and ODT are easy to edit collaboratively
+ Plain text works on any device

Disadvantages

− PDF is hard to edit without special tools
− Complex layouts may shift after conversion
− Scanned PDFs need OCR for editable text

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Video

Clips, streams, screen recordings, and movies.

Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG

Advantages

+ MP4 (H.264/H.265) plays almost everywhere
+ WebM is efficient for web embedding
+ MKV can hold multiple audio and subtitle tracks

Disadvantages

− High-resolution video needs lots of storage and bandwidth
− Re-encoding always takes time and may reduce quality
− Some codecs require licensing for commercial use

Frequently asked questions

The basic appearance of the glyphs (their shapes) will remain the same, as the quadratic Bézier outlines are preserved. Any visual changes would come from newly enabled or utilized OpenType features, not from the conversion of the outlines themselves.

The primary benefits are access to advanced typographic features (e.g., ligatures, stylistic sets, small caps) supported by the OpenType format, and improved compatibility with modern design and publishing workflows.

No, a direct TTF to OTF conversion preserves the original TrueType (quadratic Bézier) outlines; it does not convert them to PostScript (cubic Bézier) outlines unless a specific, more complex font editing process is involved.

While technically possible with some font editors, converting from OTF back to TTF might result in loss of OpenType features if they were specifically added or enabled in the OTF version, as TTF does not natively support them.

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