diff --git a/images/dupe_test_images_append_ext/append_fn.sh b/images/dupe_test_images_append_ext/append_fn.sh
new file mode 100755
index 0000000..4b2a056
--- /dev/null
+++ b/images/dupe_test_images_append_ext/append_fn.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+# TODO
+# - Make ext var do something
+# - Make images go to output dir when run
+
+# Config
+# ------------------------------------------------------------------------------
+input_dir="$HOME/Desktop/append_fn"
+ext="png"
+output_dir="$HOME/Desktop/append_fn"
+
+# Utilities
+# ------------------------------------------------------------------------------
+esc="\x1b["
+reset=${esc}"39;49;00m"
+red=${esc}"31;01m"
+sep_color=${esc}"38;5;8m"
+
+function sep() {
+  local sized=$(stty size | awk '{print $2}')
+  local len=${sized}
+  local ch="-"
+  local TERM_WIDTH="$(printf '%*s' "${len}" | tr ' ' "${ch}")"
+
+  echo -e "${sep_color}${TERM_WIDTH}${reset}"
+}
+
+# Check if the output folder exists
+# ------------------------------------------------------------------------------
+# if [ ! -d "$output_dir" ]; then
+#   mkdir -p "$output_dir"
+# fi
+
+# Check if the input folder exists. If so, cp and rename the file(s).
+# ------------------------------------------------------------------------------
+if [ ! -d "$input_dir" ]; then
+  sep
+  echo -e "  You don't have an input directory at ${red}${input_dir}${reset}."
+  echo -e "  Create the directory, put your file(s) there and try again."
+  sep
+else
+  for f in $input_dir/*.png; do
+    cp "$f" "${f%.png}-x-small.png"
+    cp "$f" "${f%.png}-small.png"
+    cp "$f" "${f%.png}-medium.png"
+    cp "$f" "${f%.png}-large.png"
+    cp "$f" "${f%.png}-x-large.png"
+  done
+fi
diff --git a/images/dupe_test_images_append_ext/convert_images_jpg.sh b/images/dupe_test_images_append_ext/convert_images_jpg.sh
new file mode 100755
index 0000000..dda48c1
--- /dev/null
+++ b/images/dupe_test_images_append_ext/convert_images_jpg.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+input_dir="$HOME/Desktop/convert"
+exts="jpg,jpeg,JPG,png,gif"
+output_dir="$HOME/Desktop/convert/processed"
+
+if [ ! -d "$output_dir" ]; then
+  mkdir -p "$output_dir"
+fi
+
+for f in $input_dir/*."{$exts}" ; do
+  convert "$f" \
+    -resize 500x \
+    -set filename:fname '%t-x-small' \
+    "$output_dir"/'%[filename:fname].jpg'
+  convert "$f" \
+    -resize 700x \
+    -set filename:fname '%t-small' \
+    "$output_dir"/'%[filename:fname].jpg'
+  convert "$f" \
+    -resize 900x \
+    -set filename:fname '%t-medium' \
+    "$output_dir"/'%[filename:fname].jpg'
+  convert "$f" \
+    -resize 1000x \
+    -set filename:fname '%t-large' \
+    "$output_dir"/'%[filename:fname].jpg'
+  convert "$f" \
+    -resize 1400x \
+    -set filename:fname '%t-x-large' \
+    "$output_dir"/'%[filename:fname].jpg'
+done
+
+# Run the mac ImageOptim app via command line
+# Slow. as. hell. Try running imageoptim-cli below instead
+# ------------------------------------------------------------------------------
+# for f in $output_dir/*.jpg ; do
+#   "/Applications/ImageOptim.app/Contents/MacOS/ImageOptim" "$f"
+# done
+
+# Run imageoptim-cli
+# brew install imageoptim-cli, if you don't already have it
+# A little bit faster than running the app, but not much. JPG files are quicker.
+# ------------------------------------------------------------------------------
+imageoptim $output_dir
+
+# Copy the original image to the processed folder AFTER running imageoptim
+# ------------------------------------------------------------------------------
+cp $input_dir/*.* $output_dir/
diff --git a/images/dupe_test_images_append_ext/convert_images_png.sh b/images/dupe_test_images_append_ext/convert_images_png.sh
new file mode 100755
index 0000000..0a09c63
--- /dev/null
+++ b/images/dupe_test_images_append_ext/convert_images_png.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+input_dir="$HOME/Desktop/convert"
+exts="jpg,jpeg,JPG,png,gif"
+output_dir="$HOME/Desktop/convert/processed"
+
+if [ ! -d "$output_dir" ]; then
+  mkdir -p "$output_dir"
+fi
+
+for f in $input_dir/*."{$exts}" ; do
+  convert "$f" \
+    -resize 500x \
+    -set filename:fname '%t-x-small' \
+    "$output_dir"/'%[filename:fname].png'
+  convert "$f" \
+    -resize 700x \
+    -set filename:fname '%t-small' \
+    "$output_dir"/'%[filename:fname].png'
+  convert "$f" \
+    -resize 900x \
+    -set filename:fname '%t-medium' \
+    "$output_dir"/'%[filename:fname].png'
+  convert "$f" \
+    -resize 1000x \
+    -set filename:fname '%t-large' \
+    "$output_dir"/'%[filename:fname].png'
+  convert "$f" \
+    -resize 1400x \
+    -set filename:fname '%t-x-large' \
+    "$output_dir"/'%[filename:fname].png'
+done
+
+# Run the mac ImageOptim app via command line
+# Slow. as. hell. Try running imageoptim-cli below instead
+# ------------------------------------------------------------------------------
+# for f in $output_dir/*.png ; do
+#   "/Applications/ImageOptim.app/Contents/MacOS/ImageOptim" "$f"
+# done
+
+# Run imageoptim-cli
+# brew install imageoptim-cli, if you don't already have it
+# A little bit faster than running the app, but not much. JPG files are quicker.
+# ------------------------------------------------------------------------------
+imageoptim $output_dir
+
+# Copy the original image to the processed folder AFTER running imageoptim
+# ------------------------------------------------------------------------------
+cp $input_dir/*.* $output_dir/
diff --git a/images/dupe_test_images_append_ext/fileext_rename.sh b/images/dupe_test_images_append_ext/fileext_rename.sh
new file mode 100755
index 0000000..240977f
--- /dev/null
+++ b/images/dupe_test_images_append_ext/fileext_rename.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+# CP and rename files in place, adding site specific extensions
+
+for f in *.png; do
+  cp "$f" "${f%.png}-x-small.png"
+  cp "$f" "${f%.png}-small.png"
+  cp "$f" "${f%.png}-medium.png"
+  cp "$f" "${f%.png}-large.png"
+  cp "$f" "${f%.png}-x-large.png"
+done