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Is it possible to make LaTeX mark overfull boxes in the output, for example by drawing red rectangles in the PDF where the boxes overflow? The purpose -- to more easily "see" where the problems are in the output.

Vegard
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1 Answers1

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As David Carlisle and egreg said, you can use the draft option in most classes.

If you wish to do it by hand (for example, you need a final option to check for another package's rendering) or tune it, you can use

\overfullrule=1mm

in the document preamble.

egreg
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raphink
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    You're my hero. :-) Microtype was turning off its stuff because of [draft], which apparently can have significant effects on the output. – EvanED Aug 27 '13 at 17:15
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    Seems like http://tex.stackexchange.com/q/28294/412 provides a way to color the marker. – Dror Feb 04 '14 at 20:31
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    @EvanED Just for the sake of completeness, you can pass the final option to the microtype package to make it do its thing even in draft mode. I always do this because frankly the whole display overfull boxes thing is completely useless if it doesn't respect microtype's changes. – Christian Mar 20 '14 at 01:48
  • I would suggest using \overfullrule=5mm, so it shows up in the PDF page thumbprints in the side panel. – Martin Vermeer Jul 30 '23 at 14:34