org: HTML preamble and postamble
12.6.3 HTML preamble and postamble
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The HTML exporter lets you define a preamble and a postamble.
The default value for ‘org-html-preamble’ is ‘t’, which means that
the preamble is inserted depending on the relevant format string in
‘org-html-preamble-format’.
Setting ‘org-html-preamble’ to a string will override the default
format string. If you set it to a function, it will insert the output
of the function, which must be a string. Setting to ‘nil’ will not
insert any preamble.
The default value for ‘org-html-postamble’ is ‘'auto’, which means
that the HTML exporter will look for information about the author, the
email, the creator and the date, and build the postamble from these
values. Setting ‘org-html-postamble’ to ‘t’ will insert the postamble
from the relevant format string found in ‘org-html-postamble-format’.
Setting it to ‘nil’ will not insert any postamble.