Arial Unicode MS

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Arial Unicode MS is a TrueType font and the extended version of the font Arial. Compared to Arial, it includes higher line height, omits kerning pairs and adds enough glyphs to cover a large subset of Unicode 2.1—thus supporting most Microsoft code pages, but also requiring much more storage space (22 megabytes).^[1] It also adds Ideographic layout tables, but unlike Arial, it mandates no smoothing in the 14–18 point range, and contains Roman (upright) glyphs only; there is no oblique (italic) version. Arial Unicode MS was previously distributed with Microsoft Office, but this ended in 2016 version. It is bundled with Mac OS X v10.5 and later. It may also be purchased separately (as Arial Unicode) from Ascender Corporation, who licenses the font from Microsoft.

When rendered with the same engine and without making adjustments for the different font metrics, the glyphs that appear in both Arial and Arial Unicode MS appear to be slightly wider, and thus rounder, in Arial Unicode MS. Horizontal text may also appear to have more inter-line spacing in Arial Unicode MS. This is due to larger bounding boxes (Arial Unicode MS needs more room for some of its extended glyphs) and the limitations of renderers, not changes in the glyph shapes. The lack of kerning pairs in Arial Unicode MS may also affect inter-glyph spacing in some renderers (for example the Adobe Flash Player).

Arial Unicode MS also includes Hebrew glyphs different from the Hebrew glyphs found in Arial. They are based on the shapes of the Hebrew glyphs in Tahoma, but are adjusted to the weight, proportions and style of Arial.