WP NTEN Friends,
I am still new to WordPress. I wonder what method are you using for image optimization. You can share links/info and suggestions on the topic.
Thanks in advance!
Personally I optimise images before uploading, using whatever image editing program is to hand.
I've tried training clients to optimise images before uploading - I find the training wears off within weeks.
Smush plugin is keeps file sizes down, but often only shaves off a little.
Offloading media to a CDN works well.
For our own sites we optimize the images using Photoshop before uploading them to WordPress. When that isn't possible we use the EWWW Image Optimizer plug-in.
We do it the same here - image optimization is done prior to upload and then we typically install EWWW Image Optimizer to help with clients who do the cropping incorrrectly.
I'm another one doing my optimization before hand and struggling to help clients do the same.
One service I haven't seen mentioned yet is TinyPNG.com which I love. They have a WordPress plugin though it requires using their paid service.
I find that the Photoshop Save for Web dialog is pretty good for JPGs but terrible for PNGs. Running PNGs through TinyPNG.com can sometimes reduce file size by 70%+ with no loss in quality except in rare cases. Highly recommended.
Also, some people probably don't realize that WordPress automatically reduces file sizes for cropped images (i.e., the sizes you set in Settings > Media). In WordPress 4.5 they actually increased the amount of compression for photos after a lot of testing showed no perceivable decrease in quality. There's now talk of trying to compress the full size images as well by default.
The developers in the house will be interested to know that the wp_editor_set_quality filter allows you to change the amount of photo compression on upload!
Thanks everyone !
Cindy, I assume the info in this discussion is quite exhaustive, but do let us know if there are any insights from your coming Word Camp.