diff --git a/R/posterdown_memoir.R b/R/posterdown_memoir.R
new file mode 100644
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+++ b/R/posterdown_memoir.R
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+#' Posterdown PDF format (using 'memoir' document class)
+#'
+#' @inheritParams rmarkdown::pdf_document
+#' @param ... Additional arguments to \code{rmarkdown::pdf_document}
+#'
+#' @return R Markdown output format to pass to
+#'   \code{\link[rmarkdown:render]{render}}
+#'
+#' @examples
+#'
+#' \dontrun{
+#' library(rmarkdown)
+#' draft("MyArticle.Rmd", template = "posterdown_generic", package = "posterdown")
+#' }
+#'
+#' @export
+posterdown_memoir <- function(..., keep_tex = TRUE) {
+  inherit_pdf_document(...,
+                       keep_tex = keep_tex,
+                       template = find_resource("posterdown_memoir", "template.tex"),
+                       citation_package = "natbib")
+}