I h've created custom font in Adobe Illustrator for my client. My client want to use it on windows as well as his website.
I used some website to convert font from .ai & .svg font to .ttf they are creating .ttf file but it is not accessible by windows. When tried to install, it displayed message corrupt file.

How to create ttf or otf font from vector created in Adobe Illustrator

Discord commented: Use Fontlab V. This is an expert textual style creation program, 90% of the world's text styles are made with it. Glyphs can be effortlessly sent out +0

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Practical follow‑up for (and others who hit "corrupt file" when installing converter-generated fonts).

Most online converters try to turn artwork into font tables without fixing common vector problems or creating required font metadata. As implied, the reliable route is preparation in Illustrator followed by import into a proper font editor that exposes the font tables and validation errors.

Make the Illustrator artwork font-ready: expand appearances and strokes, convert everything to fills, remove clipping masks and hidden objects, join or close any open paths, union overlapping contours where appropriate, simplify excess points, and place each glyph on a consistent artboard baseline and scale. Export one clean SVG (or PDF that a font editor accepts) per glyph — not a single document with all glyphs jammed together.

Import and build the font in a font editor (use one that lets you set name/OS2/cmap/head tables and run validation). Create a proper notdef, assign Unicode slots, set unitsPerEm and ascent/descent, adjust side bearings, add kerning or use automatic kerning, then generate TTF/OTF. If Windows reports "corrupt," open the generated file in the editor and run its validation: missing cmap or name tables, open contours, or malformed glyph outlines are the usual culprits. Run an autohinter if needed and recheck with a font validator before distributing.

Useful tools and docs: the FontForge documentation for importing and generating fonts and Microsoft's font validation guidance are practical references for diagnosing table errors and repair. Confirm the client has rights to use/embed the design as desktop and web fonts before delivery.

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If I remember correctly, you have to use Adobe's proprietary Typekit in order to use their fonts on the web. You have to continuously pay for a Typekit license for as long as the font is in use on the web, according to their licensing.

Use Fontlab V. This is a professional font creation program, 90% of the world's fonts are created with it. Glyphs can be easily exported from Illustrator. We'll have to suffer a little with kerning, but it's worth it. You can even create Unicode fonts if you like https://exoticfonts.com/cursive-translator/

commented: Use Fontlab V. This is an expert textual style creation program, 90% of the world's text styles are made with it. Glyphs can be effortlessly sent out +0
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