OTF File Extension

Programs that support OTF files

• Windows ¹⁰
• Mac OS ¹⁰
• Linux ³
• Online Services ²

Windows

• FontCreator
• DiskFonts
• Microsoft Windows
• FontLab Studio
• Fontographer
• Adobe Font Development Kit
• 6D Embroidery Software
• TypeTool
• DTL OTMaster
• BitFonter

Mac OS

• macOS X
• DiskFonts
• Font Book
• TypeTool
• FontLab Studio
• DTL OTMaster
• Glyphs
• Fontographer
• BitFonter
• FogLamp

Linux

• DiskFonts
• FontLab Studio
• DTL OTMaster

Online Services

• Online Font Converter
• FreeFontConverter

How to open a OTF file?

If you can’t open a OTF file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.

FontCreator, DiskFonts and macOS X stand out as the preferred programs to manage OTF files effectively. To get the latest version of FontCreator, open the High-Logic B.V website where a universal installer for all operating systems is available.

After setup, the operating system should recognize OTF files and link them with FontCreator.

Set FontCreator as your default OTF viewer

Set default app to open files on Mac

1. Right-click or Control + left-click on the desired OTF file to open a menu of available actions;
2. Choose "Open in Application" and click "Other";
3. Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
4. Choose "All Programs" within this menu and locate FontCreator. Check the box next to "Always open in app" to set it as the default program.

Set default programs for Windows

1. Take the first step by right-clicking on your OTF file. Next, select "Open With" and then choose "Choose another app" from the available options;
2. From the list of applications in the pop-up window, find and select FontCreator as your desired application;
3. Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening OTF files.

Convert files to and from OTF

If a OTF file is difficult to handle, you might try converting it to formats such as JPEG, PDF, TTF, WOFF, WOFF2 or similar, which may be easier to work with.

Be aware that converting a OTF file may reduce some features, but you can usually revert it to the original format.

Offline conversion tools, like FontCreator, provide reliable and high-quality conversion of OTF files.

Convert OTF to other file formats

• OTF to WOFF
• OTF to TTF
• OTF to JPEG
• OTF to WOFF2
• OTF to PDF

Converting Files to OTF Format

• WOFF to OTF
• TTF to OTF
• FOG to OTF
• TTC to OTF
• FFIL to OTF
• PFB to OTF

Solving Common OTF File Challenges

OTF files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.

How to edit a OTF file?

To make changes to OTF files, you need specialized software that allows both opening and editing the font files. Online OTF editors offer fewer capabilities than applications optimized for OpenType Font.

Best OTF Editor Software in 2026

Based on your described criteria, here is a list of available OTF editors.