diff --git a/default/bash/fns/transcoding b/default/bash/fns/transcoding
index 96d5b2f3..ea33c75b 100644
--- a/default/bash/fns/transcoding
+++ b/default/bash/fns/transcoding
@@ -1,11 +1,11 @@
 # Transcode a video to a good-balance 1080p that's great for sharing online
 transcode-video-1080p() {
-  ffmpeg -i $1 -vf scale=1920:1080 -c:v libx264 -preset fast -crf 23 -c:a copy ${1%.*}-1080p.mp4
+  ffmpeg -i "$1" -vf scale=1920:1080 -c:v libx264 -preset fast -crf 23 -c:a copy "${1%.*}-1080p.mp4"
 }
 
 # Transcode a video to a good-balance 4K that's great for sharing online
 transcode-video-4K() {
-  ffmpeg -i $1 -c:v libx265 -preset slow -crf 24 -c:a aac -b:a 192k ${1%.*}-optimized.mp4
+  ffmpeg -i "$1" -c:v libx265 -preset slow -crf 24 -c:a aac -b:a 192k "${1%.*}-optimized.mp4"
 }
 
 # Transcode any image to JPG image that's great for shrinking wallpapers
@@ -13,22 +13,23 @@ img2jpg() {
   img="$1"
   shift
 
-  magick "$img" $@ -quality 95 -strip ${img%.*}-converted.jpg
+  magick "$img" "$@" -quality 95 -strip "${img%.*}-converted.jpg"
 }
 
-# Transcode any image to JPG image that's great for sharing online without being too big
+# Transcode any image to a small JPG (max 1080px wide) that's great for sharing online
 img2jpg-small() {
   img="$1"
   shift
 
-  magick "$img" $@ -resize 1080x\> -quality 95 -strip ${img%.*}-small.jpg
+  magick "$img" "$@" -resize 1080x\> -quality 95 -strip "${img%.*}-small.jpg"
 }
-# Transcode any image to JPG image that's great for sharing online without being too big
+
+# Transcode any image to a medium JPG (max 1800px wide) that's great for sharing online
 img2jpg-medium() {
   img="$1"
   shift
 
-  magick "$img" $@ -resize 1800x\> -quality 95 -strip ${img%.*}-medium.jpg
+  magick "$img" "$@" -resize 1800x\> -quality 95 -strip "${img%.*}-medium.jpg"
 }
 
 # Transcode any image to compressed-but-lossless PNG
@@ -36,7 +37,7 @@ img2png() {
   img="$1"
   shift
 
-  magick "$img" $@ -strip -define png:compression-filter=5 \
+  magick "$img" "$@" -strip -define png:compression-filter=5 \
     -define png:compression-level=9 \
     -define png:compression-strategy=1 \
     -define png:exclude-chunk=all \