diff --git a/R/posterdown_html.R b/R/posterdown_html.R
new file mode 100644
index 0000000..4ed2b10
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+++ b/R/posterdown_html.R
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+#' Posterdown HTML format (using bookdown::html_document2)
+#'
+#' @inheritParams pagedown::poster_relaxed
+#' @param ... Additional arguments to \code{rmarkdown::html_document}
+#'
+#' @return R Markdown output format to pass to
+#'   \code{\link[rmarkdown:render]{render}}
+#'
+#' @examples
+#'
+#' \dontrun{
+#' library(rmarkdown)
+#' draft("MyArticle.Rmd", template = "posterdown_html", package = "posterdown")
+#' }
+#' @export
+posterdown_html <- function(...,
+	template = find_resource("posterdown_html", "template.html"),
+	css = NULL) {
+	pagedown::poster_relaxed(..., css = css, template = template)
+}