diff --git a/man/column_spec.Rd b/man/column_spec.Rd
index dc10432..ace0922 100644
--- a/man/column_spec.Rd
+++ b/man/column_spec.Rd
@@ -6,7 +6,7 @@
 \usage{
 column_spec(kable_input, column, width = NULL, bold = FALSE,
   italic = FALSE, monospace = FALSE, color = NULL, background = NULL,
-  border_left = FALSE, border_right = FALSE, ...)
+  border_left = FALSE, border_right = FALSE)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
@@ -46,6 +46,6 @@
 }
 \examples{
 x <- knitr::kable(head(mtcars), "html")
-column_spec(x, 1, width = "20em", bold = TRUE, italic = TRUE)
+column_spec(x, 1:2, width = "20em", bold = TRUE, italic = TRUE)
 
 }
diff --git a/man/kable_as_image.Rd b/man/kable_as_image.Rd
index dcb3bb1..113f848 100644
--- a/man/kable_as_image.Rd
+++ b/man/kable_as_image.Rd
@@ -5,7 +5,7 @@
 \title{Convert a LaTeX table to an image and place it in a rmarkdown document}
 \usage{
 kable_as_image(kable_input, filename = NULL, file_format = "png",
-  latex_header_includes = NULL, keep_pdf = FALSE)
+  latex_header_includes = NULL, keep_pdf = FALSE, density = 300)
 }
 \arguments{
 \item{kable_input}{Raw LaTeX code to generate a table. It doesn't have to
@@ -24,6 +24,9 @@
 
 \item{keep_pdf}{A T/F option to control if the mid-way standalone pdf should
 be kept. Default is \code{FALSE}.}
+
+\item{density}{Resolution to read the PDF file. Default value is 300, which
+should be sufficient in most cases.}
 }
 \description{
 This is a LaTeX-only function. This function will render the
diff --git a/man/row_spec.Rd b/man/row_spec.Rd
index eaf7b57..4a94983 100644
--- a/man/row_spec.Rd
+++ b/man/row_spec.Rd
@@ -35,6 +35,6 @@
 }
 \examples{
 x <- knitr::kable(head(mtcars), "html")
-row_spec(x, 1, bold = TRUE, italic = TRUE)
+row_spec(x, 1:2, bold = TRUE, italic = TRUE)
 
 }