### Why doesn’t `\``linespread` work?

The command `\``linespread{`factor`}` is supposed to multiply the current `\``baselineskip` by <factor>; but, to all appearances, it doesn’t.

In fact, the command is equivalent to `\``renewcommand{\baselinestretch}{factor}`: written that way, it somehow feels less surprising that the effect isn’t immediate. The `\``baselinestretch` factor is only used when a font is selected; a mere change of `\``baselinestretch` doesn’t change the font, any more than does the command `\``fontsize{`size`}{`baselineskip`}` — you have to follow either command with `\``selectfont`. So:

```\fontsize{10}{12}%
\selectfont
```

or:

```\linespread{1.2}%
\selectfont
```

Of course, a package such as setspace, whose job is to manage the baseline, will deal with all this stuff — see “managing double-spaced documents”. If you want to avoid setspace, beware the behaviour of linespread changes within a paragraph: read “`\``baselineskip` is a paragraph parameter”.

setspace.sty
macros/latex/contrib/setspace/setspace.sty; catalogue entry

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