How to change size of caption font while I use hang format?

Question

I hope you are doing well. I have tried to change the font size of the caption by

\DeclareCaptionFormat{myformat}{\fontsize{8}{6}\selectfont#1#2#3}
\captionsetup{format=myformat}

but I have lost hang format and I have got something like this:

Fig. 1. caption caption caption
caption caption caption caption

while I want something like this:

Fig. 1. caption caption caption
        caption caption caption

Can anyone help me?

Answer 1

You can define your own font commands:

\documentclass{article}

\usepackage{caption}
\DeclareCaptionFont{myfont}{\fontsize{8}{10}\selectfont}
\captionsetup{format=hang,font=myfont}

\begin{document}
\begin{figure}
text text
\caption[toc]{hang hang hang\\hang hang hang}
\end{figure}
\end{document}

Side remark: the second number in the fontsize argument should always be larger than the first, it describes the distance of the lines.