Hanging punctuation

Hanging punctuation

Hanging punctuation or exdentation is a way of typesetting punctuation marks and bullet points, most commonly quotation marks and hyphens, so that they do not disrupt the ‘flow’ of a body of text or ‘break’ the margin of alignment. It is so called because the punctuation appears to ‘hang’ in the margin of the text, and is not incorporated into the block or column of text. It is commonly used when text is fully justified.

Very few desktop publishing applications allow for automatic hanging punctuation. This often requires manual intervention by the designer or typographer, or the use of drawing software which supported this feature, or the use of sophisticated typesetting tools. PdfTeX, a variant of the TeX typesetting program, has microtypographic capabilities that allow for semi-automatic hanging punctuation [ [http://www.tug.org/TUGboat/Articles/tb25-1/thanh.pdf Micro-typographic Extensions of PdfTeX in Practice] ] .

A related concept is optical margin alignment; letters such as "W" are set slightly into the margin to create an illusion of balance of white space. clear

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