I want to resize images in uploads folder. What would be the best way to resize images on a live website?
First I must say I like the web server approach where you create cron jobs. In Linux, you have great options.
EXIF tool to remove bad meta information. You just need to set the cron job once a day.
Since you need to optimize the existing images.
pngimages you have
Just let me know if you need more info.
Since I had limited access to the site, the best way to do it was to use a plugin. I used this plugin's free version to compress all of the images on the site. It took me a few hours to click on the button to keep compressing the images.