Variable: org-html-postamble-format
org-html-postamble-format is a customizable variable defined in
ox-html.el.gz.
Value
(("en" "<p class=\"author\">Author: %a (%e)</p>\n<p class=\"date\">Date: %d</p>\n<p class=\"creator\">%c</p>\n<p class=\"validation\">%v</p>"))
Documentation
Alist of languages and format strings for the HTML postamble.
The first element of each list is the language code, as used for
the LANGUAGE keyword. See org-export-default-language.
The second element of each list is a format string to format the postamble itself. This format string can contain these elements:
%t stands for the title.
%s stands for the subtitle.
%a stands for the author's name.
%e stands for the author's email.
%d stands for the date.
%c will be replaced by org-html-creator-string.
%v will be replaced by org-html-validation-link.
%T will be replaced by the export time.
%C will be replaced by the last modification time.
If you need to use a "%" character, you need to escape it like that: "%%".
Source Code
;; Defined in /usr/src/emacs/lisp/org/ox-html.el.gz
(defcustom org-html-postamble-format
'(("en" "<p class=\"author\">Author: %a (%e)</p>
<p class=\"date\">Date: %d</p>
<p class=\"creator\">%c</p>
<p class=\"validation\">%v</p>"))
"Alist of languages and format strings for the HTML postamble.
The first element of each list is the language code, as used for
the LANGUAGE keyword. See `org-export-default-language'.
The second element of each list is a format string to format the
postamble itself. This format string can contain these elements:
%t stands for the title.
%s stands for the subtitle.
%a stands for the author's name.
%e stands for the author's email.
%d stands for the date.
%c will be replaced by `org-html-creator-string'.
%v will be replaced by `org-html-validation-link'.
%T will be replaced by the export time.
%C will be replaced by the last modification time.
If you need to use a \"%\" character, you need to escape it
like that: \"%%\"."
:group 'org-export-html
:type '(repeat
(list (string :tag "Language")
(string :tag "Format string"))))