Is *.otf file supported?

[Ninja2790t]

var fontCollection = new FontCollection();
fontCollection.Install(new MemoryStream(otfFileByteArray));

This is throwing exception "invalid glyph format, only ttf glyph outlines supported. imagesharp".

[tocsoft]

*.otf files will work fine as longs as they contain true type outlines...

*.ttf fonts are actually a subset of *.otf files but specifically with true type glyph outlines.