# What is the command to highlight bad boxes in pdf?

I seem to remember a command to show bad boxes in a PDF when using latex, but googling is not helping me to remember.

How can I show bad boxes in my PDF?

-
add draft to the documentclass options. –  Marco Daniel May 9 '11 at 16:50
Is there also an option for underfull hboxes? –  white_gecko Apr 22 '13 at 9:30

Pass the draft option to your document class or insert
\overfullrule=5pt

Doesn't this solution only work for bad hboxes? The question suggests that the OP is also interested in highlighting bad vboxes, but neither the draft option nor \overfullrule=5pt in the preamble accomplishes this. –  Tyson Williams Mar 3 '13 at 15:01