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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.
The style was used by Gutenberg in the Gutenberg Bible, the first book printed in Europe.
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 supports 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. Arbortext APP (formerly 3B2), QuarkXPress, Adobe InDesign and Corel Ventura are desktop publishing applications which offer automatic support for hanging punctuation.
- Hàn Thế Thành (19 March 2005). "Micro-typographic Extensions of PdfTeX in Practice" (PDF). Retrieved 16 January 2017.
- Marcin Wichary (28 July 2014). "I've been asked to report to this office". Designing Medium. Medium. Retrieved 8 June 2017.
- "CSS Text Module Level 3". W3C Working Draft. W3C. 2018-12-12. Retrieved 2019-07-22.
- Artemy Lebedev (19 October 2005). "§ 120. Hanging punctuation".
- Mark Boulton (18 April 2005). "Five simple steps to better typography — Part 2".
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