I am trying too decrease the space between the captions in the makebox and the figures I am displaying with the following code;

   \null\hfil\hfil\makebox[5cm]{Original incidence matrix \protect\linebreak ${\bf M}$.}
  \null\hfil\hfil\makebox[5cm]{Surrogate incidence matrix \protect\linebreak $\hat{\bf M}^{(MC)}$.}
  \caption{Original versus surrogate incidence matrix for the year 2018 at the HS-4 level.}

However the sapce between single captions of the figures and the figures is still large. How can I decrease it? I tried with \setlength\parindent{0pt} but it does not work...

  • Please extend your code fragment to complete small document (MWE) .
    – Zarko
    Jul 28, 2021 at 9:38
  • You might want to look at the subcaption package. Also section 2.6 of the caption package manual. Jul 29, 2021 at 1:03

1 Answer 1


Breaking lines in boxes created with \makebox is not possible.

The code is really clumsy, I'm afraid, and uses undocumented commands such as \null. I see no reason for adjustbox either.

Based on the template we discussed in a previous post of yours, here's the output from your code:

enter image description here

With the following much simpler code

\renewcommand{\arraystretch}{0.5}% to countermand double spacing

\begin{tabular}{ @{} c c @{} }
\includegraphics[width=7.2cm]{example-image} &
\includegraphics[width=7.2cm]{example-image} \\
Original incidence matrix $\mathbf{M}$ &
Surrogate incidence matrix $\hat{\mathbf{M}}^{(\mathrm{MC})}$

\caption{Original versus surrogate incidence matrix for the year 2018 at the HS-4 level.}

you get

enter image description here

Please, remember that \bf has been a deprecated command since before you were born (judging from you writing a PhD thesis).

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