You need imagemagick for this.
In Debian/Ubuntu just run this command as superuser:
apt-get install imagemagick
Linux and Mac
Just use this script:
#!/bin/bash I=0 for f in *.jpg do (( I++ )) r=$(printf "%03d" $I) read w h <<< $(convert "$f" -ping -format "%w %h" info: ) if [ $w -gt $h ] then echo "$f is $h tall and $w wide (landscape)" convert "$f[800x>]" $r.jpg else echo "$f is $h tall and $w wide (portrait)" convert "$f[395x>]" $r.jpg fi done
, where 800x> is settings to resize, more about them here.
Most used are:
- 800x> = if width more than 800px then shrink width to 800px with original scale.
- x800> = if height more than 800px then shrink height to 800px with original scale.
You can use same imagemagick command, but foreach file iteration from Windows must be used.
Universal command to resize all images in folder:
convert '*.jpg[x600>]' %03d.jpg
2 thoughts on “Batch resize images with different sizes for each orientation in Linux, Mac OS and Windows”
Thanks for the script!
Just one thing I found, the semicolon after the if parentheses should be removed (at least in mac os terminal it caused an error)
Thanks Philipp, i fixed it!