![]() ![]() You want to create small subsets for two-stage font loading to improve the performance of your application.On the other hand, you may want to use fewer features or characters from the original font file. You want to use advanced typographic features or characters that are not included in the Google fonts subsets-see what the Google fonts subsets include in a later section.There are several reasons you may want to subset a font file: Subsetting fonts is the process of taking a large font file as input and creating other smaller files, with fewer characters or OpenType features. If we take the numbers, for example, they can be superscripts (x 2), fractions ( 1/2), slashed zeros to separate them from the capital O, or old-style numbers (123456789) that are used to blend numbers inside text. ![]() The OpenType features, on the other hand, may include variations of those characters (aka glyphs) that are useful in different contexts. Each character in Unicode is mapped to a hex number. The Unicode standard organizes the characters in blocks based on their functionality and the language they support. Characters are the letters of the English alphabet (A-Z, a-z), Arabic numbers (0-9), punctuation (comma, spaces, etc). Two of the most important parts of a web font are the characters and the OpenType features.
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