Hey guys, tried looking for a simple solution but couldn’t find one.
I create some fancy images for my site, the featured images are optimized a lot, but it seems like wordpress doesn’t optimize the thumbnails as I get a bunch of stuff like this on PageSpeed:
Losslessly compressing http://evolvehype.com/…ploads/2015/03/ehlprodivision-100×65.jpg could save 249.5KiB (98% reduction).
What’s the easiest way so that the thumbnails are much smaller?
Thanks!
Hi,
Wordpress doesn’t compress images by default, you have to compress them yourself before upload, or use a plugin which can add such functionality, or add the following code in functions.php:
add_filter( 'jpeg_quality', create_function('', 'return 50;' ) );
This will compress all images to 50%, you can change that value, after you add the code you have to regenerate all thumbs – https://forum.tagdiv.com/how-to-fix-strange-thumbnails/
Thank you, Emil G.
Thanks for the reply Emil,
I added the code then installed Regenerate Thumbnails, but it doesn’t look like it did anything. Same thing saying thumbnails aren’t optimized
Weird. Perhaps you have some caching turned on conflicting with that, and so serving up old version of image.
This image is pretty big
http://evolvehype.com/…ploads/2015/03/ehlprodivision-100×65.jpg
254 KB (260,690 bytes)
with a quality factor of “50” — and images re-generated
generally speaking the size would/should be roughly 3 KB
perhaps you have some aggressive caching turned on? YOu need to turn that OFF before running the regenerate-thumbnails …
also make sure your functions file has the RIGHT code to do that — check it against my optimization sticky at top of forum as my code from functions.php is also there.
It does work 🙂
You do need to have the GD Libraries or ImageMagick running on your server. But that is assumed otherwise you’d have no thumbnails at all.
