Can I use this font on my site?

A reader recently asked me (edited):

I was wondering about font licensing and @font-face. Can you use normal fonts for this or is it a copyright issue even if you have purchased them?

It’s a legal issue even if you own the typefaces you want to use.

The reason is that when type is included in websites via the CSS @font-face rule, font files are delivered to visitors’ browsers (just like images on websites have acted for years). A visitor could theoretically view source on a website, or look through his or her own browser cache, and have a free typeface – even if you, the web designer, paid for that typeface.

Type sellers are leery of this. Naturally, they don’t want to have their work stolen. Their reactions have been varied. Purists wish for a “master control” of typeface licenses, so they’ll know who’s using what, where, and whether it’s legal. Realists have begun to strategize about allowing their type to be used online without such bureaucracy, including technologies that obfuscate both the path to a web font file and the file itself.

Ok, so what’s the answer?

All that aside, what you need to know is whether the font you have in your hands can be used on the website you’re making. The answer is: maybe. For each font you’d like to use, check the type seller’s EULA (End User License Agreement) to see if the seller allows embedding on websites.

If you find the prospect of such legal mining daunting and disruptive of your creative flow, you’re not alone. Type sellers are sensitive to this; they’re creative professionals too, and they know the last thing you need is another set of rules. Partnering with web services like Typekit, a type seller can make things dead simple for you and me, but also make sure their life’s work isn’t being abused.

Imagine you, yourself, seeking the EULA go-ahead for a large type family. You would have to check its roman, italic, boldface, small caps, ornaments, etc. – at each weight offered. Otherwise, how could you be sure that a given glyph is gold? (Legal mining? Get it?) If you subscribe to Typekit, or a similar service, you don’t have to do any of this work because you know that every one of your choices is legal.