IE9 rejects non-installable TTF/OTF fonts

[jahewson]

IE9 rejects TTF and OTF web fonts without embedding permissions set to installable in the font's header.

[coolwanglu]

Seems that fontforge can do this, but I'm not sure if it's legal or something like that.

According to the link
http://www.kltf.de/kltf_notes_ie9ttfembeddingbits.htm

Setting the meta tag and providing a WOFF font should help.

[coolwanglu]

Is this a bug report of IE ?

The demo pages work fine in IE9, which means the bit has been set correctly?

[jahewson]

No its not an IE bug, its a feature. Any font embeded in a PDF is presumably already licensed for embedding. The problem is that bit 2 and bit 3 set embedding only and printing/viewing only which are valid on the context of embeded fonts in a PDF.

The purpose of the restrictions is to stop the entire font being reproduced, but pdf2htmlEX is dealing with subsetted fonts, so it's probably not an issue. It my turn out that PDF generators just clear this bit anyway - I've not encountered it.

There's a simple workaround - serve WOFF to IE9.

[jahewson]

Documentation here http://www.microsoft.com/typography/otspec/os2.htm#fst

[coolwanglu]

What's left? Close this one?

[jahewson]

Workaround: serve WOFF to IE9 via http://www.kltf.de/kltf_notes_ie9ttfembeddingbits.htm.

[keithdtyler]

Not a workaround if the font is not available in WOFF.