A page break is a forced interruption of the page flow, so that content that follows the break will appear on the next page.
Page breaks do not affect plain documents, except for printing.

[!NOTE] The word page is exchangeable with slide in the context of a slides document.

Manual break

A page break can be triggered by a line containing only a sequence of 3 (or more) < characters.

Page 1

<<<

Page 2

This pattern does not interrupt the current block, and thus might be seen as plain text if the criteria of closing a block, such as an empty line for paragraphs, are not satisfied. The following example does not trigger a page break:

Page 1
<<<
Page 2

Page 1 <<< Page 2

Automatic break

A heading block (# This!) could automatically trigger a page break.

By default only level-1 headings (one # symbol) do, but this can be customized via the .autopagebreak function, which should conventionally be called in the 'setup' area of the source code (along with metadata, page format, etc.).

This function takes a maxdepth integer argument which indicates the maximum level a heading should be in order to trigger a page break. Heading levels range from 1 to 6.

.autopagebreak maxdepth:{3}

# A    <!-- Break -->

## B   <!-- Break -->

### C  <!-- Break -->

#### D <!-- No break -->

.noautopagebreak, which is equivalent to .autopagebreak {0}, can be called in order to disable automatic breaks.