blob: e721f4c4f6f1667da4c5d18767731cbef38f583d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
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
|
