I wish WordPress did this by default. Keeps your site from adding a ton of images for every upload, and removes the penalty of adding many custom image sizes if needed for your design.
There are several ways how to handle different image sizes in template. I prefer going the native way - using add_image_size. But especialy when I'm doing responsive site with responsive images, I can end up with dozens of image sizes in WP. I can't imagine the mess in my uploads without this plugin in those cases. Thanks!
after running our website for a year we ended up with about 200'000 pics on our servers, because each uploaded image had about 9 different formats even tough we didn't need them all for the same image. normally you need 3 sizes per image: thumb for backend, actual size for frontend, original size
this plugin solves the problem perfectly, you can even delete all the old pics and they will be regenerated by the plugin when needed.
the specific image formats are already being generated when opening the preview, so in most cases "on the fly" doesn't mean it will be triggered by one of your readers but by yourself when editing.
before using the plugin go through the support posts and apply the fixes that are suggested by the other users.
and get rid of the "c" in the filename!
My blog has been online for several years and I've specifically chosen a host that doesn't offer "unlimited" plans to avoid "over-sold" servers and performance issues caused by load balancing problems.
So in my case, the alternate size image bloat problem had become quite a significant problem after a few years.
With hundreds of posts already published, each with their own set of images, it was simply not feasible trying to figure out which re-sized images were not being used.
Dynamic Image Resizer solved this daunting problem by simply allowing me to mass delete all the alternate size images that were created by WordPress.
Since this plugin generates alternate sized images on demand, I didn't have to worry about breaking any existing image links anywhere in the blog--- either on the public front-end or administration back-end!
Dynamic Image Resizer isn't useful for just long-lived blogs. It's great to have if you're experimenting between different themes that may have their own respective image size requirements, or you haven't decided which alternate image sizes would be most useful to you.
Dynamic Image Resizer allows you to easily and quickly clear out the image bloat and unused resized images while avoiding the creation of broken image links.
I highly recommend this plugin!
This is an excellent plugin for usage in both personal and client projects where the disk space on the server is limited. A bit buggy in the current version (1.0) but this will hopefully be fixed shortly.
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