fix: stick to namespace

1 files changed, 30 insertions, 0 deletions

diff --git a/.zsh_functions/henks_scan_postproc b/.zsh_functions/henks_scan_postproc
new file mode 100644
index 0000000..e721f4c
--- /dev/null
+++ b/.zsh_functions/henks_scan_postproc
@@ -0,0 +1,30 @@
+setopt PIPE_FAIL
+
+local resize_by
+local img
+resize_by="$1"
+shift
+for img in $*
+do
+	echo "Processing ${img} ..."
+	# mostly to remove the alpha channel so ocrmypdf can work with it
+	# does not seem to work all the time, so 'convert' is used as well below
+	# still nice to optimize
+	optipng "${img}"
+	if [ $? -ne 0 ]
+	then
+		echo "optipng failed"
+		return
+	fi
+	# resize
+	# and remove alpha channel so ocrmypdf can work with it
+	# ocrmypdf does the quantization of the png which reduces size drastically
+	convert -resize $resize_by% -alpha off "$img" - \
+	| ocrmypdf - "$(basename $img .png).pdf"
+	if [ $? -ne 0 ]
+	then
+		echo "convert or ocrmypdf failed"
+		return
+	fi
+done
+