Topics: Similarities between relative and absolute age?
Fonts are the style of type face used to display text, numbers, characters and other glyphs as they are often called in the typography industry. Typography refers to the arrangement and appearance of text. Typography concerns not only the look of the glyphs, but how they are placed on the page (page margins, the amount of empty space between paragraphs or lines, the alignment of text, etc.). The most effective way to control font and other typographical styles is through the use of Cascading Style Sheets (CSS).
Text can be transformed into sound through the voice synthesizers in screen readers. Text can also be enlarged by screen enlargement or magnification software, without any loss of quality. These are the two main reasons why having content in text format is so important for accessibility. Although it is possible to provide alternative text for graphics, it is not possible to enlarge text in most graphics without some loss of quality (unless the graphic is vector-based, such as Scaleable Vector Graphics [SVG] or Flash, but this introduces a different set of potential accessibility problems).
In addition to readability of text within images, using real text instead of text within images provides many other benefits, such as lower bandwidth requirements, easier translation to other languages, better search engine optimizations, etc.