OTF to WOFF — Convert OpenType Fonts for the Web

OpenType Font (OTF) files are excellent for desktop use, but they are too large for web delivery. WOFF (Web Open Font Format) wraps the same font data in a compressed container that browsers load significantly faster. Use the MyPDF OTF to WOFF converter to make your fonts web-ready in seconds.

How to Convert OTF to WOFF

1. Upload — Drag your .otf file onto the converter or click to browse.
2. Convert — The tool compresses and repackages the font into WOFF format automatically.
3. Download — Save the resulting .woff file and reference it in your CSS @font-face rules.

OTF vs WOFF at a Glance

Feature	OTF	WOFF
Primary use	Desktop apps	Web browsers
Compression	None	zlib compressed
Browser support	Partial	All modern browsers
Typical file size	Larger	30-40% smaller
CSS @font-face	Not recommended	Recommended

Practical Tips

• Always include a WOFF2 fallback. List WOFF2 first in your @font-face src list, then WOFF as a fallback for older browsers.
• Subset before converting. If you only need Latin characters, subset the OTF first with the Font Subset tool to cut file size even further.
• Test rendering. Preview the converted font with the Font Preview tool before deploying.

Can I convert multiple OTF files at once?

Yes. The converter accepts batch uploads, so you can convert an entire font family (regular, bold, italic) in a single session.

Will the conversion change how the font looks?

No. WOFF is a container format — the glyph outlines, kerning, and hinting data remain identical to the source OTF file.

Is WOFF or WOFF2 better for the web?

WOFF2 offers superior compression (Brotli vs zlib) and is supported by all modern browsers. Use WOFF as a fallback for legacy browser coverage.

Related Tools

• OTF to WOFF2 — Convert OTF to the more modern WOFF2 format.
• TTF to WOFF — Convert TrueType fonts for the web.
• Font Subset — Reduce font file size by removing unused glyphs.
• Font Preview — Preview any font file before using it.